Home / 39,985.56-55,180.94-22,081.71

Finding the Fourth Proportional to 39,985.56, 55,180.94 and 22,081.71

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Solution

The fourth proportional to 39,985.56, 55,180.94 and 22,081.71 is: 30,473.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.56 : 55,180.94 = 22,081.71 : x
  2. Step 2: Convert to fraction form
    39,985.56/55,180.94 = 22,081.71/x
  3. Step 3: Cross multiply
    39,985.56x = 55,180.94 × 22,081.71
  4. Step 4: Simplify right side
    39,985.56x = 1,218,489,404.20
  5. Step 5: Solve for x
    x = 1,218,489,404.20/39,985.56
  6. Step 6: Final answer
    x = 30,473.24

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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.