Home / 39,986.27-55,181.21-22,081.89

Finding the Fourth Proportional to 39,986.27, 55,181.21 and 22,081.89

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Solution

The fourth proportional to 39,986.27, 55,181.21 and 22,081.89 is: 30,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.27 : 55,181.21 = 22,081.89 : x
  2. Step 2: Convert to fraction form
    39,986.27/55,181.21 = 22,081.89/x
  3. Step 3: Cross multiply
    39,986.27x = 55,181.21 × 22,081.89
  4. Step 4: Simplify right side
    39,986.27x = 1,218,505,409.29
  5. Step 5: Solve for x
    x = 1,218,505,409.29/39,986.27
  6. Step 6: Final answer
    x = 30,473.10

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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.