Home / 39,226.17-54,132.18-21,321.13

Finding the Fourth Proportional to 39,226.17, 54,132.18 and 21,321.13

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Solution

The fourth proportional to 39,226.17, 54,132.18 and 21,321.13 is: 29,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,226.17 : 54,132.18 = 21,321.13 : x
  2. Step 2: Convert to fraction form
    39,226.17/54,132.18 = 21,321.13/x
  3. Step 3: Cross multiply
    39,226.17x = 54,132.18 × 21,321.13
  4. Step 4: Simplify right side
    39,226.17x = 1,154,159,246.96
  5. Step 5: Solve for x
    x = 1,154,159,246.96/39,226.17
  6. Step 6: Final answer
    x = 29,423.19

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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.