Home / 31,789.88-47,685.82-15,151.72

Finding the Fourth Proportional to 31,789.88, 47,685.82 and 15,151.72

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Solution

The fourth proportional to 31,789.88, 47,685.82 and 15,151.72 is: 22,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,789.88 : 47,685.82 = 15,151.72 : x
  2. Step 2: Convert to fraction form
    31,789.88/47,685.82 = 15,151.72/x
  3. Step 3: Cross multiply
    31,789.88x = 47,685.82 × 15,151.72
  4. Step 4: Simplify right side
    31,789.88x = 722,522,192.61
  5. Step 5: Solve for x
    x = 722,522,192.61/31,789.88
  6. Step 6: Final answer
    x = 22,728.06

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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.