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Finding the Fourth Proportional to 22,039.80, 30,414.99 and 11,968.41

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Solution

The fourth proportional to 22,039.80, 30,414.99 and 11,968.41 is: 16,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,039.80 : 30,414.99 = 11,968.41 : x
  2. Step 2: Convert to fraction form
    22,039.80/30,414.99 = 11,968.41/x
  3. Step 3: Cross multiply
    22,039.80x = 30,414.99 × 11,968.41
  4. Step 4: Simplify right side
    22,039.80x = 364,019,025.58
  5. Step 5: Solve for x
    x = 364,019,025.58/22,039.80
  6. Step 6: Final answer
    x = 16,516.44

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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.