Home / 39,230.92-54,138.29-21,324.86

Finding the Fourth Proportional to 39,230.92, 54,138.29 and 21,324.86

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Solution

The fourth proportional to 39,230.92, 54,138.29 and 21,324.86 is: 29,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.92 : 54,138.29 = 21,324.86 : x
  2. Step 2: Convert to fraction form
    39,230.92/54,138.29 = 21,324.86/x
  3. Step 3: Cross multiply
    39,230.92x = 54,138.29 × 21,324.86
  4. Step 4: Simplify right side
    39,230.92x = 1,154,491,348.27
  5. Step 5: Solve for x
    x = 1,154,491,348.27/39,230.92
  6. Step 6: Final answer
    x = 29,428.10

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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.