Home / 22,608.11-31,198.77-12,399.18

Finding the Fourth Proportional to 22,608.11, 31,198.77 and 12,399.18

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Solution

The fourth proportional to 22,608.11, 31,198.77 and 12,399.18 is: 17,110.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,608.11 : 31,198.77 = 12,399.18 : x
  2. Step 2: Convert to fraction form
    22,608.11/31,198.77 = 12,399.18/x
  3. Step 3: Cross multiply
    22,608.11x = 31,198.77 × 12,399.18
  4. Step 4: Simplify right side
    22,608.11x = 386,839,048.01
  5. Step 5: Solve for x
    x = 386,839,048.01/22,608.11
  6. Step 6: Final answer
    x = 17,110.63

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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.