Home / 38,964.56-58,432.48-13,997.90

Finding the Fourth Proportional to 38,964.56, 58,432.48 and 13,997.90

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Solution

The fourth proportional to 38,964.56, 58,432.48 and 13,997.90 is: 20,991.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,964.56 : 58,432.48 = 13,997.90 : x
  2. Step 2: Convert to fraction form
    38,964.56/58,432.48 = 13,997.90/x
  3. Step 3: Cross multiply
    38,964.56x = 58,432.48 × 13,997.90
  4. Step 4: Simplify right side
    38,964.56x = 817,932,011.79
  5. Step 5: Solve for x
    x = 817,932,011.79/38,964.56
  6. Step 6: Final answer
    x = 20,991.69

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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.