Home / 26,789.92-40,172.10-11,998.96

Finding the Fourth Proportional to 26,789.92, 40,172.10 and 11,998.96

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Solution

The fourth proportional to 26,789.92, 40,172.10 and 11,998.96 is: 17,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,789.92 : 40,172.10 = 11,998.96 : x
  2. Step 2: Convert to fraction form
    26,789.92/40,172.10 = 11,998.96/x
  3. Step 3: Cross multiply
    26,789.92x = 40,172.10 × 11,998.96
  4. Step 4: Simplify right side
    26,789.92x = 482,023,421.02
  5. Step 5: Solve for x
    x = 482,023,421.02/26,789.92
  6. Step 6: Final answer
    x = 17,992.72

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1.5x scale

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.