Home / 38,469.30-57,720.15-20,951.70

Finding the Fourth Proportional to 38,469.30, 57,720.15 and 20,951.70

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Solution

The fourth proportional to 38,469.30, 57,720.15 and 20,951.70 is: 31,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469.30 : 57,720.15 = 20,951.70 : x
  2. Step 2: Convert to fraction form
    38,469.30/57,720.15 = 20,951.70/x
  3. Step 3: Cross multiply
    38,469.30x = 57,720.15 × 20,951.70
  4. Step 4: Simplify right side
    38,469.30x = 1,209,335,266.76
  5. Step 5: Solve for x
    x = 1,209,335,266.76/38,469.30
  6. Step 6: Final answer
    x = 31,436.37

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1.5x scale

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.