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Finding the Fourth Proportional to 26,680.72, 40,021.07 and 6,959.22

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Solution

The fourth proportional to 26,680.72, 40,021.07 and 6,959.22 is: 10,438.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,680.72 : 40,021.07 = 6,959.22 : x
  2. Step 2: Convert to fraction form
    26,680.72/40,021.07 = 6,959.22/x
  3. Step 3: Cross multiply
    26,680.72x = 40,021.07 × 6,959.22
  4. Step 4: Simplify right side
    26,680.72x = 278,515,395.97
  5. Step 5: Solve for x
    x = 278,515,395.97/26,680.72
  6. Step 6: Final answer
    x = 10,438.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.