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Finding the Fourth Proportional to 27,443.79, 41,170.79 and 8,728.55

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Solution

The fourth proportional to 27,443.79, 41,170.79 and 8,728.55 is: 13,094.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,443.79 : 41,170.79 = 8,728.55 : x
  2. Step 2: Convert to fraction form
    27,443.79/41,170.79 = 8,728.55/x
  3. Step 3: Cross multiply
    27,443.79x = 41,170.79 × 8,728.55
  4. Step 4: Simplify right side
    27,443.79x = 359,361,049.56
  5. Step 5: Solve for x
    x = 359,361,049.56/27,443.79
  6. Step 6: Final answer
    x = 13,094.44

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1.5x scale

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.