Home / 38,424.27-57,636.68-12,131.13

Finding the Fourth Proportional to 38,424.27, 57,636.68 and 12,131.13

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Solution

The fourth proportional to 38,424.27, 57,636.68 and 12,131.13 is: 18,196.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.27 : 57,636.68 = 12,131.13 : x
  2. Step 2: Convert to fraction form
    38,424.27/57,636.68 = 12,131.13/x
  3. Step 3: Cross multiply
    38,424.27x = 57,636.68 × 12,131.13
  4. Step 4: Simplify right side
    38,424.27x = 699,197,997.19
  5. Step 5: Solve for x
    x = 699,197,997.19/38,424.27
  6. Step 6: Final answer
    x = 18,196.78

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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.