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Finding the Fourth Proportional to 17,879.40, 26,822.84 and 5,400.61

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Solution

The fourth proportional to 17,879.40, 26,822.84 and 5,400.61 is: 8,102.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.40 : 26,822.84 = 5,400.61 : x
  2. Step 2: Convert to fraction form
    17,879.40/26,822.84 = 5,400.61/x
  3. Step 3: Cross multiply
    17,879.40x = 26,822.84 × 5,400.61
  4. Step 4: Simplify right side
    17,879.40x = 144,859,603.87
  5. Step 5: Solve for x
    x = 144,859,603.87/17,879.40
  6. Step 6: Final answer
    x = 8,102.04

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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.