Home / 26,939.12-40,427.17-9,408.96

Finding the Fourth Proportional to 26,939.12, 40,427.17 and 9,408.96

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Solution

The fourth proportional to 26,939.12, 40,427.17 and 9,408.96 is: 14,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,939.12 : 40,427.17 = 9,408.96 : x
  2. Step 2: Convert to fraction form
    26,939.12/40,427.17 = 9,408.96/x
  3. Step 3: Cross multiply
    26,939.12x = 40,427.17 × 9,408.96
  4. Step 4: Simplify right side
    26,939.12x = 380,377,601.92
  5. Step 5: Solve for x
    x = 380,377,601.92/26,939.12
  6. Step 6: Final answer
    x = 14,119.90

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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.