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Finding the Fourth Proportional to 22,269.81, 30,732.81 and 12,198.68

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Solution

The fourth proportional to 22,269.81, 30,732.81 and 12,198.68 is: 16,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.81 : 30,732.81 = 12,198.68 : x
  2. Step 2: Convert to fraction form
    22,269.81/30,732.81 = 12,198.68/x
  3. Step 3: Cross multiply
    22,269.81x = 30,732.81 × 12,198.68
  4. Step 4: Simplify right side
    22,269.81x = 374,899,714.69
  5. Step 5: Solve for x
    x = 374,899,714.69/22,269.81
  6. Step 6: Final answer
    x = 16,834.44

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1.5x scale

Why These Related Problems?

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