Home / 39,986.33-55,180.78-22,081.48

Finding the Fourth Proportional to 39,986.33, 55,180.78 and 22,081.48

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Solution

The fourth proportional to 39,986.33, 55,180.78 and 22,081.48 is: 30,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.33 : 55,180.78 = 22,081.48 : x
  2. Step 2: Convert to fraction form
    39,986.33/55,180.78 = 22,081.48/x
  3. Step 3: Cross multiply
    39,986.33x = 55,180.78 × 22,081.48
  4. Step 4: Simplify right side
    39,986.33x = 1,218,473,096.80
  5. Step 5: Solve for x
    x = 1,218,473,096.80/39,986.33
  6. Step 6: Final answer
    x = 30,472.25

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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.