Home / 26,916.96-40,375.45-12,108.58

Finding the Fourth Proportional to 26,916.96, 40,375.45 and 12,108.58

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Solution

The fourth proportional to 26,916.96, 40,375.45 and 12,108.58 is: 18,162.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,916.96 : 40,375.45 = 12,108.58 : x
  2. Step 2: Convert to fraction form
    26,916.96/40,375.45 = 12,108.58/x
  3. Step 3: Cross multiply
    26,916.96x = 40,375.45 × 12,108.58
  4. Step 4: Simplify right side
    26,916.96x = 488,889,103.94
  5. Step 5: Solve for x
    x = 488,889,103.94/26,916.96
  6. Step 6: Final answer
    x = 18,162.87

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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.