Home / 26,231.31-39,356.69-12,198.87

Finding the Fourth Proportional to 26,231.31, 39,356.69 and 12,198.87

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Solution

The fourth proportional to 26,231.31, 39,356.69 and 12,198.87 is: 18,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,231.31 : 39,356.69 = 12,198.87 : x
  2. Step 2: Convert to fraction form
    26,231.31/39,356.69 = 12,198.87/x
  3. Step 3: Cross multiply
    26,231.31x = 39,356.69 × 12,198.87
  4. Step 4: Simplify right side
    26,231.31x = 480,107,083.95
  5. Step 5: Solve for x
    x = 480,107,083.95/26,231.31
  6. Step 6: Final answer
    x = 18,302.83

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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.