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Finding the Fourth Proportional to 22,115.70, 30,520.26 and 12,044.58

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Solution

The fourth proportional to 22,115.70, 30,520.26 and 12,044.58 is: 16,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.70 : 30,520.26 = 12,044.58 : x
  2. Step 2: Convert to fraction form
    22,115.70/30,520.26 = 12,044.58/x
  3. Step 3: Cross multiply
    22,115.70x = 30,520.26 × 12,044.58
  4. Step 4: Simplify right side
    22,115.70x = 367,603,713.19
  5. Step 5: Solve for x
    x = 367,603,713.19/22,115.70
  6. Step 6: Final answer
    x = 16,621.84

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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.