In general, languages with fewer consonants will have more vowels (and vice versa), so as to have as many unique syllables as possible and preserve redundancy. (Danish is an exception.)

• Hawaiian has eight consonant phonemes and twenty-five vowels (including diphthongs & long vowels). If you don't include diphthongs, it still has ten vowels, including the long vowels.
• Danish has around seventeen consonant phonemes and around twenty-six vowel phonemes.
• Apinayé is analyzed as having seventeen consonants and seventeen vowels.
• Finnish has fourteen native consonants (a few more are found in loanwords) and sixteen vowels (including long vowels).

In general, languages with fewer consonants will have more vowels (and vice versa), so as to have as many unique syllables as possible and preserve redundancy. (Danish is an exception.)

• Hawaiian has eight consonant phonemes and twenty-five vowels (including diphthongs & long vowels). If you don't include diphthongs, it still has ten vowels, including the long vowels.
• Danish has around seventeen consonant phonemes and around twenty-six vowel phonemes.
• Apinayé is analyzed as having seventeen consonants and seventeen vowels.
• Finnish has fourteen native consonants (a few more are found in loanwords) and sixteen vowels (including long vowels). Edit: Including diphthongs, it has thirty-four vowels.