Home / 20,193.62-30,291.45-7,714.73

Finding the Fourth Proportional to 20,193.62, 30,291.45 and 7,714.73

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Solution

The fourth proportional to 20,193.62, 30,291.45 and 7,714.73 is: 11,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.62 : 30,291.45 = 7,714.73 : x
  2. Step 2: Convert to fraction form
    20,193.62/30,291.45 = 7,714.73/x
  3. Step 3: Cross multiply
    20,193.62x = 30,291.45 × 7,714.73
  4. Step 4: Simplify right side
    20,193.62x = 233,690,358.06
  5. Step 5: Solve for x
    x = 233,690,358.06/20,193.62
  6. Step 6: Final answer
    x = 11,572.48

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.