Home / 31,512.30-47,268.45-15,927.90

Finding the Fourth Proportional to 31,512.30, 47,268.45 and 15,927.90

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Solution

The fourth proportional to 31,512.30, 47,268.45 and 15,927.90 is: 23,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.30 : 47,268.45 = 15,927.90 : x
  2. Step 2: Convert to fraction form
    31,512.30/47,268.45 = 15,927.90/x
  3. Step 3: Cross multiply
    31,512.30x = 47,268.45 × 15,927.90
  4. Step 4: Simplify right side
    31,512.30x = 752,887,144.76
  5. Step 5: Solve for x
    x = 752,887,144.76/31,512.30
  6. Step 6: Final answer
    x = 23,891.85

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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.