Home / 39,748.90-54,850.83-21,843.52

Finding the Fourth Proportional to 39,748.90, 54,850.83 and 21,843.52

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Solution

The fourth proportional to 39,748.90, 54,850.83 and 21,843.52 is: 30,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,748.90 : 54,850.83 = 21,843.52 : x
  2. Step 2: Convert to fraction form
    39,748.90/54,850.83 = 21,843.52/x
  3. Step 3: Cross multiply
    39,748.90x = 54,850.83 × 21,843.52
  4. Step 4: Simplify right side
    39,748.90x = 1,198,135,202.12
  5. Step 5: Solve for x
    x = 1,198,135,202.12/39,748.90
  6. Step 6: Final answer
    x = 30,142.60

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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.