Home / 22,613.38-31,206.46-13,180.12

Finding the Fourth Proportional to 22,613.38, 31,206.46 and 13,180.12

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Solution

The fourth proportional to 22,613.38, 31,206.46 and 13,180.12 is: 18,188.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.38 : 31,206.46 = 13,180.12 : x
  2. Step 2: Convert to fraction form
    22,613.38/31,206.46 = 13,180.12/x
  3. Step 3: Cross multiply
    22,613.38x = 31,206.46 × 13,180.12
  4. Step 4: Simplify right side
    22,613.38x = 411,304,887.58
  5. Step 5: Solve for x
    x = 411,304,887.58/22,613.38
  6. Step 6: Final answer
    x = 18,188.56

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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.