Home / 22,139.20-30,552.12-12,067.45

Finding the Fourth Proportional to 22,139.20, 30,552.12 and 12,067.45

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Solution

The fourth proportional to 22,139.20, 30,552.12 and 12,067.45 is: 16,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.20 : 30,552.12 = 12,067.45 : x
  2. Step 2: Convert to fraction form
    22,139.20/30,552.12 = 12,067.45/x
  3. Step 3: Cross multiply
    22,139.20x = 30,552.12 × 12,067.45
  4. Step 4: Simplify right side
    22,139.20x = 368,686,104.11
  5. Step 5: Solve for x
    x = 368,686,104.11/22,139.20
  6. Step 6: Final answer
    x = 16,653.09

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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.