Home / 39,882.26-55,039.97-21,977.26

Finding the Fourth Proportional to 39,882.26, 55,039.97 and 21,977.26

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Solution

The fourth proportional to 39,882.26, 55,039.97 and 21,977.26 is: 30,329.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,882.26 : 55,039.97 = 21,977.26 : x
  2. Step 2: Convert to fraction form
    39,882.26/55,039.97 = 21,977.26/x
  3. Step 3: Cross multiply
    39,882.26x = 55,039.97 × 21,977.26
  4. Step 4: Simplify right side
    39,882.26x = 1,209,627,731.08
  5. Step 5: Solve for x
    x = 1,209,627,731.08/39,882.26
  6. Step 6: Final answer
    x = 30,329.97

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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.