Home / 26,719.92-40,073.40-11,129.04

Finding the Fourth Proportional to 26,719.92, 40,073.40 and 11,129.04

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Solution

The fourth proportional to 26,719.92, 40,073.40 and 11,129.04 is: 16,690.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,719.92 : 40,073.40 = 11,129.04 : x
  2. Step 2: Convert to fraction form
    26,719.92/40,073.40 = 11,129.04/x
  3. Step 3: Cross multiply
    26,719.92x = 40,073.40 × 11,129.04
  4. Step 4: Simplify right side
    26,719.92x = 445,978,471.54
  5. Step 5: Solve for x
    x = 445,978,471.54/26,719.92
  6. Step 6: Final answer
    x = 16,690.86

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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.