How many people were at the stadium?

At a football stadium, 4% of the fans in attendance were teenagers. If there were 170 teenagers at the football stadium, what was the total number of people at the stadium?

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Determine what number 170 is 4% of.

In the formula, a = pb,
a is the part
p is the percent
b is the whole

a = pb
170 = 0.04b   {substituted 170 in for the part and 4% in for the percent (as a decimal)}
b = 4250   {divided each side by 0.04}
 
A total of 4250 people were at the stadium

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