Home / 25,373.40-37,987.20-15,531.90

Finding the Fourth Proportional to 25,373.40, 37,987.20 and 15,531.90

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Solution

The fourth proportional to 25,373.40, 37,987.20 and 15,531.90 is: 23,253.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,373.40 : 37,987.20 = 15,531.90 : x
  2. Step 2: Convert to fraction form
    25,373.40/37,987.20 = 15,531.90/x
  3. Step 3: Cross multiply
    25,373.40x = 37,987.20 × 15,531.90
  4. Step 4: Simplify right side
    25,373.40x = 590,013,391.68
  5. Step 5: Solve for x
    x = 590,013,391.68/25,373.40
  6. Step 6: Final answer
    x = 23,253.23

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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.