Home / 31,757.30-43,821.91-18,332.87

Finding the Fourth Proportional to 31,757.30, 43,821.91 and 18,332.87

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Solution

The fourth proportional to 31,757.30, 43,821.91 and 18,332.87 is: 25,297.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,757.30 : 43,821.91 = 18,332.87 : x
  2. Step 2: Convert to fraction form
    31,757.30/43,821.91 = 18,332.87/x
  3. Step 3: Cross multiply
    31,757.30x = 43,821.91 × 18,332.87
  4. Step 4: Simplify right side
    31,757.30x = 803,381,379.18
  5. Step 5: Solve for x
    x = 803,381,379.18/31,757.30
  6. Step 6: Final answer
    x = 25,297.53

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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.