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Finding the Fourth Proportional to 22,103.50, 30,502.89 and 12,167.50

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Solution

The fourth proportional to 22,103.50, 30,502.89 and 12,167.50 is: 16,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,103.50 : 30,502.89 = 12,167.50 : x
  2. Step 2: Convert to fraction form
    22,103.50/30,502.89 = 12,167.50/x
  3. Step 3: Cross multiply
    22,103.50x = 30,502.89 × 12,167.50
  4. Step 4: Simplify right side
    22,103.50x = 371,143,914.08
  5. Step 5: Solve for x
    x = 371,143,914.08/22,103.50
  6. Step 6: Final answer
    x = 16,791.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.