Home / 26,909.94-40,375.16-12,115.46

Finding the Fourth Proportional to 26,909.94, 40,375.16 and 12,115.46

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Solution

The fourth proportional to 26,909.94, 40,375.16 and 12,115.46 is: 18,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,909.94 : 40,375.16 = 12,115.46 : x
  2. Step 2: Convert to fraction form
    26,909.94/40,375.16 = 12,115.46/x
  3. Step 3: Cross multiply
    26,909.94x = 40,375.16 × 12,115.46
  4. Step 4: Simplify right side
    26,909.94x = 489,163,434.10
  5. Step 5: Solve for x
    x = 489,163,434.10/26,909.94
  6. Step 6: Final answer
    x = 18,177.80

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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.