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Finding the Fourth Proportional to 29,165.30, 40,223.09 and 18,550.90

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Solution

The fourth proportional to 29,165.30, 40,223.09 and 18,550.90 is: 25,584.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,165.30 : 40,223.09 = 18,550.90 : x
  2. Step 2: Convert to fraction form
    29,165.30/40,223.09 = 18,550.90/x
  3. Step 3: Cross multiply
    29,165.30x = 40,223.09 × 18,550.90
  4. Step 4: Simplify right side
    29,165.30x = 746,174,520.28
  5. Step 5: Solve for x
    x = 746,174,520.28/29,165.30
  6. Step 6: Final answer
    x = 25,584.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.