Home / 22,854.38-31,539.51-12,781.73

Finding the Fourth Proportional to 22,854.38, 31,539.51 and 12,781.73

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Solution

The fourth proportional to 22,854.38, 31,539.51 and 12,781.73 is: 17,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,854.38 : 31,539.51 = 12,781.73 : x
  2. Step 2: Convert to fraction form
    22,854.38/31,539.51 = 12,781.73/x
  3. Step 3: Cross multiply
    22,854.38x = 31,539.51 × 12,781.73
  4. Step 4: Simplify right side
    22,854.38x = 403,129,343.45
  5. Step 5: Solve for x
    x = 403,129,343.45/22,854.38
  6. Step 6: Final answer
    x = 17,639.04

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Half scale
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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.