Home / 25,702.20-38,517.30-20,446.20

Finding the Fourth Proportional to 25,702.20, 38,517.30 and 20,446.20

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Solution

The fourth proportional to 25,702.20, 38,517.30 and 20,446.20 is: 30,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,702.20 : 38,517.30 = 20,446.20 : x
  2. Step 2: Convert to fraction form
    25,702.20/38,517.30 = 20,446.20/x
  3. Step 3: Cross multiply
    25,702.20x = 38,517.30 × 20,446.20
  4. Step 4: Simplify right side
    25,702.20x = 787,532,419.26
  5. Step 5: Solve for x
    x = 787,532,419.26/25,702.20
  6. Step 6: Final answer
    x = 30,640.66

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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.