Home / 38,660.88-57,989.49-13,700.52

Finding the Fourth Proportional to 38,660.88, 57,989.49 and 13,700.52

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Solution

The fourth proportional to 38,660.88, 57,989.49 and 13,700.52 is: 20,550.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.88 : 57,989.49 = 13,700.52 : x
  2. Step 2: Convert to fraction form
    38,660.88/57,989.49 = 13,700.52/x
  3. Step 3: Cross multiply
    38,660.88x = 57,989.49 × 13,700.52
  4. Step 4: Simplify right side
    38,660.88x = 794,486,167.53
  5. Step 5: Solve for x
    x = 794,486,167.53/38,660.88
  6. Step 6: Final answer
    x = 20,550.13

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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.