Home / 39,745.53-54,849.92-21,841.52

Finding the Fourth Proportional to 39,745.53, 54,849.92 and 21,841.52

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Solution

The fourth proportional to 39,745.53, 54,849.92 and 21,841.52 is: 30,141.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,745.53 : 54,849.92 = 21,841.52 : x
  2. Step 2: Convert to fraction form
    39,745.53/54,849.92 = 21,841.52/x
  3. Step 3: Cross multiply
    39,745.53x = 54,849.92 × 21,841.52
  4. Step 4: Simplify right side
    39,745.53x = 1,198,005,241.22
  5. Step 5: Solve for x
    x = 1,198,005,241.22/39,745.53
  6. Step 6: Final answer
    x = 30,141.89

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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.