Home / 39,982.58-55,176.81-22,078.71

Finding the Fourth Proportional to 39,982.58, 55,176.81 and 22,078.71

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Solution

The fourth proportional to 39,982.58, 55,176.81 and 22,078.71 is: 30,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,982.58 : 55,176.81 = 22,078.71 : x
  2. Step 2: Convert to fraction form
    39,982.58/55,176.81 = 22,078.71/x
  3. Step 3: Cross multiply
    39,982.58x = 55,176.81 × 22,078.71
  4. Step 4: Simplify right side
    39,982.58x = 1,218,232,786.72
  5. Step 5: Solve for x
    x = 1,218,232,786.72/39,982.58
  6. Step 6: Final answer
    x = 30,469.09

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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.