Home / 26,998.80-40,512.78-12,218.33

Finding the Fourth Proportional to 26,998.80, 40,512.78 and 12,218.33

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Solution

The fourth proportional to 26,998.80, 40,512.78 and 12,218.33 is: 18,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,998.80 : 40,512.78 = 12,218.33 : x
  2. Step 2: Convert to fraction form
    26,998.80/40,512.78 = 12,218.33/x
  3. Step 3: Cross multiply
    26,998.80x = 40,512.78 × 12,218.33
  4. Step 4: Simplify right side
    26,998.80x = 494,998,312.69
  5. Step 5: Solve for x
    x = 494,998,312.69/26,998.80
  6. Step 6: Final answer
    x = 18,334.09

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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.