Home / 31,338.20-47,007.30-29,151.20

Finding the Fourth Proportional to 31,338.20, 47,007.30 and 29,151.20

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Solution

The fourth proportional to 31,338.20, 47,007.30 and 29,151.20 is: 43,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,338.20 : 47,007.30 = 29,151.20 : x
  2. Step 2: Convert to fraction form
    31,338.20/47,007.30 = 29,151.20/x
  3. Step 3: Cross multiply
    31,338.20x = 47,007.30 × 29,151.20
  4. Step 4: Simplify right side
    31,338.20x = 1,370,319,203.76
  5. Step 5: Solve for x
    x = 1,370,319,203.76/31,338.20
  6. Step 6: Final answer
    x = 43,726.80

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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.