Home / 22,155.96-30,586.17-15,355.14

Finding the Fourth Proportional to 22,155.96, 30,586.17 and 15,355.14

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Solution

The fourth proportional to 22,155.96, 30,586.17 and 15,355.14 is: 21,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,155.96 : 30,586.17 = 15,355.14 : x
  2. Step 2: Convert to fraction form
    22,155.96/30,586.17 = 15,355.14/x
  3. Step 3: Cross multiply
    22,155.96x = 30,586.17 × 15,355.14
  4. Step 4: Simplify right side
    22,155.96x = 469,654,922.41
  5. Step 5: Solve for x
    x = 469,654,922.41/22,155.96
  6. Step 6: Final answer
    x = 21,197.68

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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.