Home / 31,891.15-47,816.20-15,250.83

Finding the Fourth Proportional to 31,891.15, 47,816.20 and 15,250.83

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Solution

The fourth proportional to 31,891.15, 47,816.20 and 15,250.83 is: 22,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,891.15 : 47,816.20 = 15,250.83 : x
  2. Step 2: Convert to fraction form
    31,891.15/47,816.20 = 15,250.83/x
  3. Step 3: Cross multiply
    31,891.15x = 47,816.20 × 15,250.83
  4. Step 4: Simplify right side
    31,891.15x = 729,236,737.45
  5. Step 5: Solve for x
    x = 729,236,737.45/31,891.15
  6. Step 6: Final answer
    x = 22,866.43

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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.