Home / 39,843.15-54,983.10-21,937.69

Finding the Fourth Proportional to 39,843.15, 54,983.10 and 21,937.69

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Solution

The fourth proportional to 39,843.15, 54,983.10 and 21,937.69 is: 30,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,843.15 : 54,983.10 = 21,937.69 : x
  2. Step 2: Convert to fraction form
    39,843.15/54,983.10 = 21,937.69/x
  3. Step 3: Cross multiply
    39,843.15x = 54,983.10 × 21,937.69
  4. Step 4: Simplify right side
    39,843.15x = 1,206,202,203.04
  5. Step 5: Solve for x
    x = 1,206,202,203.04/39,843.15
  6. Step 6: Final answer
    x = 30,273.77

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1.5x scale

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.