Home / 26,665.20-40,005.21-11,669.66

Finding the Fourth Proportional to 26,665.20, 40,005.21 and 11,669.66

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Solution

The fourth proportional to 26,665.20, 40,005.21 and 11,669.66 is: 17,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,665.20 : 40,005.21 = 11,669.66 : x
  2. Step 2: Convert to fraction form
    26,665.20/40,005.21 = 11,669.66/x
  3. Step 3: Cross multiply
    26,665.20x = 40,005.21 × 11,669.66
  4. Step 4: Simplify right side
    26,665.20x = 466,846,998.90
  5. Step 5: Solve for x
    x = 466,846,998.90/26,665.20
  6. Step 6: Final answer
    x = 17,507.73

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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.