Home / 39,745.62-54,850.23-21,842.28

Finding the Fourth Proportional to 39,745.62, 54,850.23 and 21,842.28

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Solution

The fourth proportional to 39,745.62, 54,850.23 and 21,842.28 is: 30,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,745.62 : 54,850.23 = 21,842.28 : x
  2. Step 2: Convert to fraction form
    39,745.62/54,850.23 = 21,842.28/x
  3. Step 3: Cross multiply
    39,745.62x = 54,850.23 × 21,842.28
  4. Step 4: Simplify right side
    39,745.62x = 1,198,054,081.72
  5. Step 5: Solve for x
    x = 1,198,054,081.72/39,745.62
  6. Step 6: Final answer
    x = 30,143.05

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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.