Home / 22,217.11-30,657.49-12,144.91

Finding the Fourth Proportional to 22,217.11, 30,657.49 and 12,144.91

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Solution

The fourth proportional to 22,217.11, 30,657.49 and 12,144.91 is: 16,758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,217.11 : 30,657.49 = 12,144.91 : x
  2. Step 2: Convert to fraction form
    22,217.11/30,657.49 = 12,144.91/x
  3. Step 3: Cross multiply
    22,217.11x = 30,657.49 × 12,144.91
  4. Step 4: Simplify right side
    22,217.11x = 372,332,456.88
  5. Step 5: Solve for x
    x = 372,332,456.88/22,217.11
  6. Step 6: Final answer
    x = 16,758.82

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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.