Home / 22,198.81-30,634.43-12,766.75

Finding the Fourth Proportional to 22,198.81, 30,634.43 and 12,766.75

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Solution

The fourth proportional to 22,198.81, 30,634.43 and 12,766.75 is: 17,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,198.81 : 30,634.43 = 12,766.75 : x
  2. Step 2: Convert to fraction form
    22,198.81/30,634.43 = 12,766.75/x
  3. Step 3: Cross multiply
    22,198.81x = 30,634.43 × 12,766.75
  4. Step 4: Simplify right side
    22,198.81x = 391,102,109.20
  5. Step 5: Solve for x
    x = 391,102,109.20/22,198.81
  6. Step 6: Final answer
    x = 17,618.16

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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.