Home / 31,771.20-43,755.48-31,082.43

Finding the Fourth Proportional to 31,771.20, 43,755.48 and 31,082.43

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Solution

The fourth proportional to 31,771.20, 43,755.48 and 31,082.43 is: 42,806.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.20 : 43,755.48 = 31,082.43 : x
  2. Step 2: Convert to fraction form
    31,771.20/43,755.48 = 31,082.43/x
  3. Step 3: Cross multiply
    31,771.20x = 43,755.48 × 31,082.43
  4. Step 4: Simplify right side
    31,771.20x = 1,360,026,644.22
  5. Step 5: Solve for x
    x = 1,360,026,644.22/31,771.20
  6. Step 6: Final answer
    x = 42,806.90

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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.