Home / 39,986.68-55,181.34-22,081.54

Finding the Fourth Proportional to 39,986.68, 55,181.34 and 22,081.54

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Solution

The fourth proportional to 39,986.68, 55,181.34 and 22,081.54 is: 30,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.68 : 55,181.34 = 22,081.54 : x
  2. Step 2: Convert to fraction form
    39,986.68/55,181.34 = 22,081.54/x
  3. Step 3: Cross multiply
    39,986.68x = 55,181.34 × 22,081.54
  4. Step 4: Simplify right side
    39,986.68x = 1,218,488,966.46
  5. Step 5: Solve for x
    x = 1,218,488,966.46/39,986.68
  6. Step 6: Final answer
    x = 30,472.37

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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.