Home / 26,251.40-39,391.50-12,400.04

Finding the Fourth Proportional to 26,251.40, 39,391.50 and 12,400.04

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Solution

The fourth proportional to 26,251.40, 39,391.50 and 12,400.04 is: 18,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,251.40 : 39,391.50 = 12,400.04 : x
  2. Step 2: Convert to fraction form
    26,251.40/39,391.50 = 12,400.04/x
  3. Step 3: Cross multiply
    26,251.40x = 39,391.50 × 12,400.04
  4. Step 4: Simplify right side
    26,251.40x = 488,456,175.66
  5. Step 5: Solve for x
    x = 488,456,175.66/26,251.40
  6. Step 6: Final answer
    x = 18,606.86

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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.