Final answer:
The maximum number of performers in each row so that all the rows are equal in length is 16.
Step-by-step explanation:
To find the maximum number of performers in each row so that all rows are equal in length, we need to find the greatest common divisor (GCD) of 48 and 32. The GCD of 48 and 32 is 16. Therefore, the maximum number of performers in each row is 16.