Finding the Third Proportional to 13,220.75 and 20,249.75
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Solution
The third proportional to 13,220.75 and 20,249.75 is: 31,015.82
Step by Step Solution
- Step 1: Write the proportion equation
13,220.75 : 20,249.75 = 20,249.75 : x - Step 2: Convert to fraction form
13,220.75/20,249.75 = 20,249.75/x - Step 3: Cross multiply
13,220.75x = 20,249.75 × 20,249.75 - Step 4: Simplify right side
13,220.75x = 410,052,375.06 - Step 5: Solve for x
x = 410,052,375.06/13,220.75 - Step 6: Final answer
x = 31,015.82
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These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.