Home / 38,661.38-57,990.24-13,701.02

Finding the Fourth Proportional to 38,661.38, 57,990.24 and 13,701.02

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Solution

The fourth proportional to 38,661.38, 57,990.24 and 13,701.02 is: 20,550.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661.38 : 57,990.24 = 13,701.02 : x
  2. Step 2: Convert to fraction form
    38,661.38/57,990.24 = 13,701.02/x
  3. Step 3: Cross multiply
    38,661.38x = 57,990.24 × 13,701.02
  4. Step 4: Simplify right side
    38,661.38x = 794,525,438.04
  5. Step 5: Solve for x
    x = 794,525,438.04/38,661.38
  6. Step 6: Final answer
    x = 20,550.88

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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.