Home / 31,701.88-43,753.20-18,270.52

Finding the Fourth Proportional to 31,701.88, 43,753.20 and 18,270.52

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Solution

The fourth proportional to 31,701.88, 43,753.20 and 18,270.52 is: 25,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.88 : 43,753.20 = 18,270.52 : x
  2. Step 2: Convert to fraction form
    31,701.88/43,753.20 = 18,270.52/x
  3. Step 3: Cross multiply
    31,701.88x = 43,753.20 × 18,270.52
  4. Step 4: Simplify right side
    31,701.88x = 799,393,715.66
  5. Step 5: Solve for x
    x = 799,393,715.66/31,701.88
  6. Step 6: Final answer
    x = 25,215.97

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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.