Home / 26,912.58-40,353.64-12,876

Finding the Fourth Proportional to 26,912.58, 40,353.64 and 12,876

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Solution

The fourth proportional to 26,912.58, 40,353.64 and 12,876 is: 19,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.58 : 40,353.64 = 12,876 : x
  2. Step 2: Convert to fraction form
    26,912.58/40,353.64 = 12,876/x
  3. Step 3: Cross multiply
    26,912.58x = 40,353.64 × 12,876
  4. Step 4: Simplify right side
    26,912.58x = 519,593,468.64
  5. Step 5: Solve for x
    x = 519,593,468.64/26,912.58
  6. Step 6: Final answer
    x = 19,306.71

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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.