Home / 27,840.20-41,764.35-9,115.70

Finding the Fourth Proportional to 27,840.20, 41,764.35 and 9,115.70

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Solution

The fourth proportional to 27,840.20, 41,764.35 and 9,115.70 is: 13,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,840.20 : 41,764.35 = 9,115.70 : x
  2. Step 2: Convert to fraction form
    27,840.20/41,764.35 = 9,115.70/x
  3. Step 3: Cross multiply
    27,840.20x = 41,764.35 × 9,115.70
  4. Step 4: Simplify right side
    27,840.20x = 380,711,285.30
  5. Step 5: Solve for x
    x = 380,711,285.30/27,840.20
  6. Step 6: Final answer
    x = 13,674.88

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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.