Home / 22,205.24-30,645.34-12,135.20

Finding the Fourth Proportional to 22,205.24, 30,645.34 and 12,135.20

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Solution

The fourth proportional to 22,205.24, 30,645.34 and 12,135.20 is: 16,747.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,205.24 : 30,645.34 = 12,135.20 : x
  2. Step 2: Convert to fraction form
    22,205.24/30,645.34 = 12,135.20/x
  3. Step 3: Cross multiply
    22,205.24x = 30,645.34 × 12,135.20
  4. Step 4: Simplify right side
    22,205.24x = 371,887,329.97
  5. Step 5: Solve for x
    x = 371,887,329.97/22,205.24
  6. Step 6: Final answer
    x = 16,747.73

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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.