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Finding the Fourth Proportional to 22,291.14, 30,762.14 and 12,220.55

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Solution

The fourth proportional to 22,291.14, 30,762.14 and 12,220.55 is: 16,864.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.14 : 30,762.14 = 12,220.55 : x
  2. Step 2: Convert to fraction form
    22,291.14/30,762.14 = 12,220.55/x
  3. Step 3: Cross multiply
    22,291.14x = 30,762.14 × 12,220.55
  4. Step 4: Simplify right side
    22,291.14x = 375,930,269.98
  5. Step 5: Solve for x
    x = 375,930,269.98/22,291.14
  6. Step 6: Final answer
    x = 16,864.56

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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.