What is 4.04 percent of 321 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 321 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 321 is 100%, so we can write it down as 321=100%.
4. We know, that x is 4.04% of the output value, so we can write it down as x=4.04%.
5. Now we have two simple equations:
1) 321=100%
2) x=4.04%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
321/x=100%/4.04%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 4.04% of 321

321/x=100/4.04
(321/x)*x=(100/4.04)*x       - we multiply both sides of the equation by x
321=24.752475247525*x       - we divide both sides of the equation by (24.752475247525) to get x
321/24.752475247525=x
12.9684=x
x=12.9684

now we have:
4.04% of 321=12.9684