Home / 22,380.36-30,884.97-12,309.42

Finding the Fourth Proportional to 22,380.36, 30,884.97 and 12,309.42

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Solution

The fourth proportional to 22,380.36, 30,884.97 and 12,309.42 is: 16,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,380.36 : 30,884.97 = 12,309.42 : x
  2. Step 2: Convert to fraction form
    22,380.36/30,884.97 = 12,309.42/x
  3. Step 3: Cross multiply
    22,380.36x = 30,884.97 × 12,309.42
  4. Step 4: Simplify right side
    22,380.36x = 380,176,067.42
  5. Step 5: Solve for x
    x = 380,176,067.42/22,380.36
  6. Step 6: Final answer
    x = 16,987.04

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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.