Home / 26,753.82-40,131.12-12,715.28

Finding the Fourth Proportional to 26,753.82, 40,131.12 and 12,715.28

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Solution

The fourth proportional to 26,753.82, 40,131.12 and 12,715.28 is: 19,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,753.82 : 40,131.12 = 12,715.28 : x
  2. Step 2: Convert to fraction form
    26,753.82/40,131.12 = 12,715.28/x
  3. Step 3: Cross multiply
    26,753.82x = 40,131.12 × 12,715.28
  4. Step 4: Simplify right side
    26,753.82x = 510,278,481.47
  5. Step 5: Solve for x
    x = 510,278,481.47/26,753.82
  6. Step 6: Final answer
    x = 19,073.11

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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.