Home / 31,257.03-43,135.72-17,109.88

Finding the Fourth Proportional to 31,257.03, 43,135.72 and 17,109.88

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Solution

The fourth proportional to 31,257.03, 43,135.72 and 17,109.88 is: 23,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.03 : 43,135.72 = 17,109.88 : x
  2. Step 2: Convert to fraction form
    31,257.03/43,135.72 = 17,109.88/x
  3. Step 3: Cross multiply
    31,257.03x = 43,135.72 × 17,109.88
  4. Step 4: Simplify right side
    31,257.03x = 738,046,691.69
  5. Step 5: Solve for x
    x = 738,046,691.69/31,257.03
  6. Step 6: Final answer
    x = 23,612.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.