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Finding the Fourth Proportional to 22,214.45, 33,311.66 and 8,172.09

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Solution

The fourth proportional to 22,214.45, 33,311.66 and 8,172.09 is: 12,254.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.45 : 33,311.66 = 8,172.09 : x
  2. Step 2: Convert to fraction form
    22,214.45/33,311.66 = 8,172.09/x
  3. Step 3: Cross multiply
    22,214.45x = 33,311.66 × 8,172.09
  4. Step 4: Simplify right side
    22,214.45x = 272,225,842.71
  5. Step 5: Solve for x
    x = 272,225,842.71/22,214.45
  6. Step 6: Final answer
    x = 12,254.45

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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.