Home / 22,132.25-30,542.10-12,060.78

Finding the Fourth Proportional to 22,132.25, 30,542.10 and 12,060.78

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Solution

The fourth proportional to 22,132.25, 30,542.10 and 12,060.78 is: 16,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,132.25 : 30,542.10 = 12,060.78 : x
  2. Step 2: Convert to fraction form
    22,132.25/30,542.10 = 12,060.78/x
  3. Step 3: Cross multiply
    22,132.25x = 30,542.10 × 12,060.78
  4. Step 4: Simplify right side
    22,132.25x = 368,361,578.99
  5. Step 5: Solve for x
    x = 368,361,578.99/22,132.25
  6. Step 6: Final answer
    x = 16,643.66

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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.