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Finding the Fourth Proportional to 20,813.52, 31,220.60 and 6,022.49

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Solution

The fourth proportional to 20,813.52, 31,220.60 and 6,022.49 is: 9,033.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,813.52 : 31,220.60 = 6,022.49 : x
  2. Step 2: Convert to fraction form
    20,813.52/31,220.60 = 6,022.49/x
  3. Step 3: Cross multiply
    20,813.52x = 31,220.60 × 6,022.49
  4. Step 4: Simplify right side
    20,813.52x = 188,025,739.14
  5. Step 5: Solve for x
    x = 188,025,739.14/20,813.52
  6. Step 6: Final answer
    x = 9,033.83

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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.