Home / 26,781.89-40,169.79-6,791.29

Finding the Fourth Proportional to 26,781.89, 40,169.79 and 6,791.29

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Solution

The fourth proportional to 26,781.89, 40,169.79 and 6,791.29 is: 10,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.89 : 40,169.79 = 6,791.29 : x
  2. Step 2: Convert to fraction form
    26,781.89/40,169.79 = 6,791.29/x
  3. Step 3: Cross multiply
    26,781.89x = 40,169.79 × 6,791.29
  4. Step 4: Simplify right side
    26,781.89x = 272,804,592.70
  5. Step 5: Solve for x
    x = 272,804,592.70/26,781.89
  6. Step 6: Final answer
    x = 10,186.16

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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.