Home / 22,248.28-30,691.13-13,168.47

Finding the Fourth Proportional to 22,248.28, 30,691.13 and 13,168.47

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Solution

The fourth proportional to 22,248.28, 30,691.13 and 13,168.47 is: 18,165.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,248.28 : 30,691.13 = 13,168.47 : x
  2. Step 2: Convert to fraction form
    22,248.28/30,691.13 = 13,168.47/x
  3. Step 3: Cross multiply
    22,248.28x = 30,691.13 × 13,168.47
  4. Step 4: Simplify right side
    22,248.28x = 404,155,310.96
  5. Step 5: Solve for x
    x = 404,155,310.96/22,248.28
  6. Step 6: Final answer
    x = 18,165.69

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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.