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Finding the Fourth Proportional to 22,281.89, 30,749.11 and 12,210.41

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Solution

The fourth proportional to 22,281.89, 30,749.11 and 12,210.41 is: 16,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.89 : 30,749.11 = 12,210.41 : x
  2. Step 2: Convert to fraction form
    22,281.89/30,749.11 = 12,210.41/x
  3. Step 3: Cross multiply
    22,281.89x = 30,749.11 × 12,210.41
  4. Step 4: Simplify right side
    22,281.89x = 375,459,139.69
  5. Step 5: Solve for x
    x = 375,459,139.69/22,281.89
  6. Step 6: Final answer
    x = 16,850.42

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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.