Home / 22,623.38-31,219.21-12,551.71

Finding the Fourth Proportional to 22,623.38, 31,219.21 and 12,551.71

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Solution

The fourth proportional to 22,623.38, 31,219.21 and 12,551.71 is: 17,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,623.38 : 31,219.21 = 12,551.71 : x
  2. Step 2: Convert to fraction form
    22,623.38/31,219.21 = 12,551.71/x
  3. Step 3: Cross multiply
    22,623.38x = 31,219.21 × 12,551.71
  4. Step 4: Simplify right side
    22,623.38x = 391,854,470.35
  5. Step 5: Solve for x
    x = 391,854,470.35/22,623.38
  6. Step 6: Final answer
    x = 17,320.77

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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.