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Finding the Fourth Proportional to 22,141.44, 30,555.18 and 12,205.44

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Solution

The fourth proportional to 22,141.44, 30,555.18 and 12,205.44 is: 16,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,141.44 : 30,555.18 = 12,205.44 : x
  2. Step 2: Convert to fraction form
    22,141.44/30,555.18 = 12,205.44/x
  3. Step 3: Cross multiply
    22,141.44x = 30,555.18 × 12,205.44
  4. Step 4: Simplify right side
    22,141.44x = 372,939,416.18
  5. Step 5: Solve for x
    x = 372,939,416.18/22,141.44
  6. Step 6: Final answer
    x = 16,843.50

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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.