Home / 39,986.57-55,179.71-22,081.19

Finding the Fourth Proportional to 39,986.57, 55,179.71 and 22,081.19

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Solution

The fourth proportional to 39,986.57, 55,179.71 and 22,081.19 is: 30,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.57 : 55,179.71 = 22,081.19 : x
  2. Step 2: Convert to fraction form
    39,986.57/55,179.71 = 22,081.19/x
  3. Step 3: Cross multiply
    39,986.57x = 55,179.71 × 22,081.19
  4. Step 4: Simplify right side
    39,986.57x = 1,218,433,274.35
  5. Step 5: Solve for x
    x = 1,218,433,274.35/39,986.57
  6. Step 6: Final answer
    x = 30,471.07

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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.