Home / 38,713.28-58,086.32-21,162.60

Finding the Fourth Proportional to 38,713.28, 58,086.32 and 21,162.60

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Solution

The fourth proportional to 38,713.28, 58,086.32 and 21,162.60 is: 31,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,713.28 : 58,086.32 = 21,162.60 : x
  2. Step 2: Convert to fraction form
    38,713.28/58,086.32 = 21,162.60/x
  3. Step 3: Cross multiply
    38,713.28x = 58,086.32 × 21,162.60
  4. Step 4: Simplify right side
    38,713.28x = 1,229,257,449.82
  5. Step 5: Solve for x
    x = 1,229,257,449.82/38,713.28
  6. Step 6: Final answer
    x = 31,752.87

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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.