Home / 20,614.13-28,447.49-11,182.76

Finding the Fourth Proportional to 20,614.13, 28,447.49 and 11,182.76

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Solution

The fourth proportional to 20,614.13, 28,447.49 and 11,182.76 is: 15,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.13 : 28,447.49 = 11,182.76 : x
  2. Step 2: Convert to fraction form
    20,614.13/28,447.49 = 11,182.76/x
  3. Step 3: Cross multiply
    20,614.13x = 28,447.49 × 11,182.76
  4. Step 4: Simplify right side
    20,614.13x = 318,121,453.27
  5. Step 5: Solve for x
    x = 318,121,453.27/20,614.13
  6. Step 6: Final answer
    x = 15,432.20

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Double scale
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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.