Home / 27,163.20-40,711.92-12,351.78

Finding the Fourth Proportional to 27,163.20, 40,711.92 and 12,351.78

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Solution

The fourth proportional to 27,163.20, 40,711.92 and 12,351.78 is: 18,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,163.20 : 40,711.92 = 12,351.78 : x
  2. Step 2: Convert to fraction form
    27,163.20/40,711.92 = 12,351.78/x
  3. Step 3: Cross multiply
    27,163.20x = 40,711.92 × 12,351.78
  4. Step 4: Simplify right side
    27,163.20x = 502,864,679.22
  5. Step 5: Solve for x
    x = 502,864,679.22/27,163.20
  6. Step 6: Final answer
    x = 18,512.72

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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.