Home / 22,132.39-30,539.13-13,179.61

Finding the Fourth Proportional to 22,132.39, 30,539.13 and 13,179.61

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Solution

The fourth proportional to 22,132.39, 30,539.13 and 13,179.61 is: 18,185.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,132.39 : 30,539.13 = 13,179.61 : x
  2. Step 2: Convert to fraction form
    22,132.39/30,539.13 = 13,179.61/x
  3. Step 3: Cross multiply
    22,132.39x = 30,539.13 × 13,179.61
  4. Step 4: Simplify right side
    22,132.39x = 402,493,823.14
  5. Step 5: Solve for x
    x = 402,493,823.14/22,132.39
  6. Step 6: Final answer
    x = 18,185.74

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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.