Home / 31,480.24-47,220.36-10,414.61

Finding the Fourth Proportional to 31,480.24, 47,220.36 and 10,414.61

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Solution

The fourth proportional to 31,480.24, 47,220.36 and 10,414.61 is: 15,621.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.24 : 47,220.36 = 10,414.61 : x
  2. Step 2: Convert to fraction form
    31,480.24/47,220.36 = 10,414.61/x
  3. Step 3: Cross multiply
    31,480.24x = 47,220.36 × 10,414.61
  4. Step 4: Simplify right side
    31,480.24x = 491,781,574.43
  5. Step 5: Solve for x
    x = 491,781,574.43/31,480.24
  6. Step 6: Final answer
    x = 15,621.91

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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.