Home / 39,843.56-54,982.07-21,935.12

Finding the Fourth Proportional to 39,843.56, 54,982.07 and 21,935.12

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Solution

The fourth proportional to 39,843.56, 54,982.07 and 21,935.12 is: 30,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,843.56 : 54,982.07 = 21,935.12 : x
  2. Step 2: Convert to fraction form
    39,843.56/54,982.07 = 21,935.12/x
  3. Step 3: Cross multiply
    39,843.56x = 54,982.07 × 21,935.12
  4. Step 4: Simplify right side
    39,843.56x = 1,206,038,193.62
  5. Step 5: Solve for x
    x = 1,206,038,193.62/39,843.56
  6. Step 6: Final answer
    x = 30,269.34

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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.