Home / 22,612.10-31,204.95-12,540.83

Finding the Fourth Proportional to 22,612.10, 31,204.95 and 12,540.83

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Solution

The fourth proportional to 22,612.10, 31,204.95 and 12,540.83 is: 17,306.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.10 : 31,204.95 = 12,540.83 : x
  2. Step 2: Convert to fraction form
    22,612.10/31,204.95 = 12,540.83/x
  3. Step 3: Cross multiply
    22,612.10x = 31,204.95 × 12,540.83
  4. Step 4: Simplify right side
    22,612.10x = 391,335,770.06
  5. Step 5: Solve for x
    x = 391,335,770.06/22,612.10
  6. Step 6: Final answer
    x = 17,306.48

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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.