Home / 26,767.78-40,143.42-18,500.92

Finding the Fourth Proportional to 26,767.78, 40,143.42 and 18,500.92

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Solution

The fourth proportional to 26,767.78, 40,143.42 and 18,500.92 is: 27,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,767.78 : 40,143.42 = 18,500.92 : x
  2. Step 2: Convert to fraction form
    26,767.78/40,143.42 = 18,500.92/x
  3. Step 3: Cross multiply
    26,767.78x = 40,143.42 × 18,500.92
  4. Step 4: Simplify right side
    26,767.78x = 742,690,201.95
  5. Step 5: Solve for x
    x = 742,690,201.95/26,767.78
  6. Step 6: Final answer
    x = 27,745.68

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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.