Home / 22,520.27-33,770.39-11,988.05

Finding the Fourth Proportional to 22,520.27, 33,770.39 and 11,988.05

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Solution

The fourth proportional to 22,520.27, 33,770.39 and 11,988.05 is: 17,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.27 : 33,770.39 = 11,988.05 : x
  2. Step 2: Convert to fraction form
    22,520.27/33,770.39 = 11,988.05/x
  3. Step 3: Cross multiply
    22,520.27x = 33,770.39 × 11,988.05
  4. Step 4: Simplify right side
    22,520.27x = 404,840,895.05
  5. Step 5: Solve for x
    x = 404,840,895.05/22,520.27
  6. Step 6: Final answer
    x = 17,976.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.