Home / 22,612.70-31,207.13-12,542.10

Finding the Fourth Proportional to 22,612.70, 31,207.13 and 12,542.10

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Solution

The fourth proportional to 22,612.70, 31,207.13 and 12,542.10 is: 17,308.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.70 : 31,207.13 = 12,542.10 : x
  2. Step 2: Convert to fraction form
    22,612.70/31,207.13 = 12,542.10/x
  3. Step 3: Cross multiply
    22,612.70x = 31,207.13 × 12,542.10
  4. Step 4: Simplify right side
    22,612.70x = 391,402,882.46
  5. Step 5: Solve for x
    x = 391,402,882.46/22,612.70
  6. Step 6: Final answer
    x = 17,308.99

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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.