Home / 22,148.66-30,572.55-13,198.97

Finding the Fourth Proportional to 22,148.66, 30,572.55 and 13,198.97

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Solution

The fourth proportional to 22,148.66, 30,572.55 and 13,198.97 is: 18,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,148.66 : 30,572.55 = 13,198.97 : x
  2. Step 2: Convert to fraction form
    22,148.66/30,572.55 = 13,198.97/x
  3. Step 3: Cross multiply
    22,148.66x = 30,572.55 × 13,198.97
  4. Step 4: Simplify right side
    22,148.66x = 403,526,017.41
  5. Step 5: Solve for x
    x = 403,526,017.41/22,148.66
  6. Step 6: Final answer
    x = 18,218.99

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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.