Home / 31,540.27-47,318.39-10,480.43

Finding the Fourth Proportional to 31,540.27, 47,318.39 and 10,480.43

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Solution

The fourth proportional to 31,540.27, 47,318.39 and 10,480.43 is: 15,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540.27 : 47,318.39 = 10,480.43 : x
  2. Step 2: Convert to fraction form
    31,540.27/47,318.39 = 10,480.43/x
  3. Step 3: Cross multiply
    31,540.27x = 47,318.39 × 10,480.43
  4. Step 4: Simplify right side
    31,540.27x = 495,917,074.11
  5. Step 5: Solve for x
    x = 495,917,074.11/31,540.27
  6. Step 6: Final answer
    x = 15,723.30

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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.