Home / 38,958.28-58,446.60-12,663.04

Finding the Fourth Proportional to 38,958.28, 58,446.60 and 12,663.04

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Solution

The fourth proportional to 38,958.28, 58,446.60 and 12,663.04 is: 18,997.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,958.28 : 58,446.60 = 12,663.04 : x
  2. Step 2: Convert to fraction form
    38,958.28/58,446.60 = 12,663.04/x
  3. Step 3: Cross multiply
    38,958.28x = 58,446.60 × 12,663.04
  4. Step 4: Simplify right side
    38,958.28x = 740,111,633.66
  5. Step 5: Solve for x
    x = 740,111,633.66/38,958.28
  6. Step 6: Final answer
    x = 18,997.54

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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.