Home / 31,313.20-43,211.28-17,165.56

Finding the Fourth Proportional to 31,313.20, 43,211.28 and 17,165.56

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Solution

The fourth proportional to 31,313.20, 43,211.28 and 17,165.56 is: 23,687.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,313.20 : 43,211.28 = 17,165.56 : x
  2. Step 2: Convert to fraction form
    31,313.20/43,211.28 = 17,165.56/x
  3. Step 3: Cross multiply
    31,313.20x = 43,211.28 × 17,165.56
  4. Step 4: Simplify right side
    31,313.20x = 741,745,819.52
  5. Step 5: Solve for x
    x = 741,745,819.52/31,313.20
  6. Step 6: Final answer
    x = 23,687.96

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1.5x scale

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.