Home / 26,905.78-40,343.30-8,180.29

Finding the Fourth Proportional to 26,905.78, 40,343.30 and 8,180.29

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Solution

The fourth proportional to 26,905.78, 40,343.30 and 8,180.29 is: 12,265.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,905.78 : 40,343.30 = 8,180.29 : x
  2. Step 2: Convert to fraction form
    26,905.78/40,343.30 = 8,180.29/x
  3. Step 3: Cross multiply
    26,905.78x = 40,343.30 × 8,180.29
  4. Step 4: Simplify right side
    26,905.78x = 330,019,650.94
  5. Step 5: Solve for x
    x = 330,019,650.94/26,905.78
  6. Step 6: Final answer
    x = 12,265.76

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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.