Home / 26,778.62-40,188.20-18,249.32

Finding the Fourth Proportional to 26,778.62, 40,188.20 and 18,249.32

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Solution

The fourth proportional to 26,778.62, 40,188.20 and 18,249.32 is: 27,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,778.62 : 40,188.20 = 18,249.32 : x
  2. Step 2: Convert to fraction form
    26,778.62/40,188.20 = 18,249.32/x
  3. Step 3: Cross multiply
    26,778.62x = 40,188.20 × 18,249.32
  4. Step 4: Simplify right side
    26,778.62x = 733,407,331.25
  5. Step 5: Solve for x
    x = 733,407,331.25/26,778.62
  6. Step 6: Final answer
    x = 27,387.79

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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.