How many progressive amendments were created and passed?

There were a total of four significant progressive amendments to the U.S. Constitution, which are the 16th through the 19th Amendments. The 16th Amendment, ratified in 1913, allowed for a federal income tax; the 17th Amendment, ratified in 1913, established the direct election of U.S. senators; the 18th Amendment, ratified in 1919, instituted Prohibition; and the 19th Amendment, ratified in 1920, granted women the right to vote. These amendments aimed to address various social and political issues during the Progressive Era.