Home / 27,131.22-40,691.70-8,408.88

Finding the Fourth Proportional to 27,131.22, 40,691.70 and 8,408.88

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Solution

The fourth proportional to 27,131.22, 40,691.70 and 8,408.88 is: 12,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,131.22 : 40,691.70 = 8,408.88 : x
  2. Step 2: Convert to fraction form
    27,131.22/40,691.70 = 8,408.88/x
  3. Step 3: Cross multiply
    27,131.22x = 40,691.70 × 8,408.88
  4. Step 4: Simplify right side
    27,131.22x = 342,171,622.30
  5. Step 5: Solve for x
    x = 342,171,622.30/27,131.22
  6. Step 6: Final answer
    x = 12,611.73

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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.