Home / 22,133.39-30,540.51-13,180.61

Finding the Fourth Proportional to 22,133.39, 30,540.51 and 13,180.61

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Solution

The fourth proportional to 22,133.39, 30,540.51 and 13,180.61 is: 18,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,133.39 : 30,540.51 = 13,180.61 : x
  2. Step 2: Convert to fraction form
    22,133.39/30,540.51 = 13,180.61/x
  3. Step 3: Cross multiply
    22,133.39x = 30,540.51 × 13,180.61
  4. Step 4: Simplify right side
    22,133.39x = 402,542,551.51
  5. Step 5: Solve for x
    x = 402,542,551.51/22,133.39
  6. Step 6: Final answer
    x = 18,187.12

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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.