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Finding the Fourth Proportional to 22,648.68, 33,986.38 and 8,620.51

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Solution

The fourth proportional to 22,648.68, 33,986.38 and 8,620.51 is: 12,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,648.68 : 33,986.38 = 8,620.51 : x
  2. Step 2: Convert to fraction form
    22,648.68/33,986.38 = 8,620.51/x
  3. Step 3: Cross multiply
    22,648.68x = 33,986.38 × 8,620.51
  4. Step 4: Simplify right side
    22,648.68x = 292,979,928.65
  5. Step 5: Solve for x
    x = 292,979,928.65/22,648.68
  6. Step 6: Final answer
    x = 12,935.85

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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.