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Finding the Fourth Proportional to 33,405.60, 50,144.85 and 18,606.90

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Solution

The fourth proportional to 33,405.60, 50,144.85 and 18,606.90 is: 27,930.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,405.60 : 50,144.85 = 18,606.90 : x
  2. Step 2: Convert to fraction form
    33,405.60/50,144.85 = 18,606.90/x
  3. Step 3: Cross multiply
    33,405.60x = 50,144.85 × 18,606.90
  4. Step 4: Simplify right side
    33,405.60x = 933,040,209.47
  5. Step 5: Solve for x
    x = 933,040,209.47/33,405.60
  6. Step 6: Final answer
    x = 27,930.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.