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Finding the Fourth Proportional to 22,120.40, 33,180.60 and 5,704.40

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Solution

The fourth proportional to 22,120.40, 33,180.60 and 5,704.40 is: 8,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120.40 : 33,180.60 = 5,704.40 : x
  2. Step 2: Convert to fraction form
    22,120.40/33,180.60 = 5,704.40/x
  3. Step 3: Cross multiply
    22,120.40x = 33,180.60 × 5,704.40
  4. Step 4: Simplify right side
    22,120.40x = 189,275,414.64
  5. Step 5: Solve for x
    x = 189,275,414.64/22,120.40
  6. Step 6: Final answer
    x = 8,556.60

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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.