Home / 38,514.76-57,781.86-10,812.76

Finding the Fourth Proportional to 38,514.76, 57,781.86 and 10,812.76

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Solution

The fourth proportional to 38,514.76, 57,781.86 and 10,812.76 is: 16,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,514.76 : 57,781.86 = 10,812.76 : x
  2. Step 2: Convert to fraction form
    38,514.76/57,781.86 = 10,812.76/x
  3. Step 3: Cross multiply
    38,514.76x = 57,781.86 × 10,812.76
  4. Step 4: Simplify right side
    38,514.76x = 624,781,384.53
  5. Step 5: Solve for x
    x = 624,781,384.53/38,514.76
  6. Step 6: Final answer
    x = 16,221.87

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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.