Home / 39,887.87-55,044.42-21,982.41

Finding the Fourth Proportional to 39,887.87, 55,044.42 and 21,982.41

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Solution

The fourth proportional to 39,887.87, 55,044.42 and 21,982.41 is: 30,335.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,887.87 : 55,044.42 = 21,982.41 : x
  2. Step 2: Convert to fraction form
    39,887.87/55,044.42 = 21,982.41/x
  3. Step 3: Cross multiply
    39,887.87x = 55,044.42 × 21,982.41
  4. Step 4: Simplify right side
    39,887.87x = 1,210,009,008.65
  5. Step 5: Solve for x
    x = 1,210,009,008.65/39,887.87
  6. Step 6: Final answer
    x = 30,335.26

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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.