Home / 21,191.92-29,245.40-11,632.24

Finding the Fourth Proportional to 21,191.92, 29,245.40 and 11,632.24

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Solution

The fourth proportional to 21,191.92, 29,245.40 and 11,632.24 is: 16,052.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.92 : 29,245.40 = 11,632.24 : x
  2. Step 2: Convert to fraction form
    21,191.92/29,245.40 = 11,632.24/x
  3. Step 3: Cross multiply
    21,191.92x = 29,245.40 × 11,632.24
  4. Step 4: Simplify right side
    21,191.92x = 340,189,511.70
  5. Step 5: Solve for x
    x = 340,189,511.70/21,191.92
  6. Step 6: Final answer
    x = 16,052.79

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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.