Home / 27,405.72-41,105.35-7,685.86

Finding the Fourth Proportional to 27,405.72, 41,105.35 and 7,685.86

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Solution

The fourth proportional to 27,405.72, 41,105.35 and 7,685.86 is: 11,527.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.72 : 41,105.35 = 7,685.86 : x
  2. Step 2: Convert to fraction form
    27,405.72/41,105.35 = 7,685.86/x
  3. Step 3: Cross multiply
    27,405.72x = 41,105.35 × 7,685.86
  4. Step 4: Simplify right side
    27,405.72x = 315,929,965.35
  5. Step 5: Solve for x
    x = 315,929,965.35/27,405.72
  6. Step 6: Final answer
    x = 11,527.88

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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.