Home / 22,423.38-30,956.04-15,290.88

Finding the Fourth Proportional to 22,423.38, 30,956.04 and 15,290.88

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Solution

The fourth proportional to 22,423.38, 30,956.04 and 15,290.88 is: 21,109.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,423.38 : 30,956.04 = 15,290.88 : x
  2. Step 2: Convert to fraction form
    22,423.38/30,956.04 = 15,290.88/x
  3. Step 3: Cross multiply
    22,423.38x = 30,956.04 × 15,290.88
  4. Step 4: Simplify right side
    22,423.38x = 473,345,092.92
  5. Step 5: Solve for x
    x = 473,345,092.92/22,423.38
  6. Step 6: Final answer
    x = 21,109.44

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Half scale
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Double scale
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Similar ratio
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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.