Home / 20,349.96-28,082.18-11,397.02

Finding the Fourth Proportional to 20,349.96, 28,082.18 and 11,397.02

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Solution

The fourth proportional to 20,349.96, 28,082.18 and 11,397.02 is: 15,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.96 : 28,082.18 = 11,397.02 : x
  2. Step 2: Convert to fraction form
    20,349.96/28,082.18 = 11,397.02/x
  3. Step 3: Cross multiply
    20,349.96x = 28,082.18 × 11,397.02
  4. Step 4: Simplify right side
    20,349.96x = 320,053,167.10
  5. Step 5: Solve for x
    x = 320,053,167.10/20,349.96
  6. Step 6: Final answer
    x = 15,727.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.