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Finding the Fourth Proportional to 22,166.36, 33,239.78 and 8,305.64

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Solution

The fourth proportional to 22,166.36, 33,239.78 and 8,305.64 is: 12,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,166.36 : 33,239.78 = 8,305.64 : x
  2. Step 2: Convert to fraction form
    22,166.36/33,239.78 = 8,305.64/x
  3. Step 3: Cross multiply
    22,166.36x = 33,239.78 × 8,305.64
  4. Step 4: Simplify right side
    22,166.36x = 276,077,646.36
  5. Step 5: Solve for x
    x = 276,077,646.36/22,166.36
  6. Step 6: Final answer
    x = 12,454.80

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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.