Home / 22,279.05-30,743.96-12,205.69

Finding the Fourth Proportional to 22,279.05, 30,743.96 and 12,205.69

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Solution

The fourth proportional to 22,279.05, 30,743.96 and 12,205.69 is: 16,843.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.05 : 30,743.96 = 12,205.69 : x
  2. Step 2: Convert to fraction form
    22,279.05/30,743.96 = 12,205.69/x
  3. Step 3: Cross multiply
    22,279.05x = 30,743.96 × 12,205.69
  4. Step 4: Simplify right side
    22,279.05x = 375,251,107.24
  5. Step 5: Solve for x
    x = 375,251,107.24/22,279.05
  6. Step 6: Final answer
    x = 16,843.23

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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.