Home / 25,781.80-38,650.38-15,371.68

Finding the Fourth Proportional to 25,781.80, 38,650.38 and 15,371.68

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Solution

The fourth proportional to 25,781.80, 38,650.38 and 15,371.68 is: 23,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,781.80 : 38,650.38 = 15,371.68 : x
  2. Step 2: Convert to fraction form
    25,781.80/38,650.38 = 15,371.68/x
  3. Step 3: Cross multiply
    25,781.80x = 38,650.38 × 15,371.68
  4. Step 4: Simplify right side
    25,781.80x = 594,121,273.24
  5. Step 5: Solve for x
    x = 594,121,273.24/25,781.80
  6. Step 6: Final answer
    x = 23,044.21

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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.