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Finding the Fourth Proportional to 31,151.55, 46,734.48 and 8,965.11

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Solution

The fourth proportional to 31,151.55, 46,734.48 and 8,965.11 is: 13,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.55 : 46,734.48 = 8,965.11 : x
  2. Step 2: Convert to fraction form
    31,151.55/46,734.48 = 8,965.11/x
  3. Step 3: Cross multiply
    31,151.55x = 46,734.48 × 8,965.11
  4. Step 4: Simplify right side
    31,151.55x = 418,979,753.99
  5. Step 5: Solve for x
    x = 418,979,753.99/31,151.55
  6. Step 6: Final answer
    x = 13,449.72

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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.