Home / 39,754.12-54,862.16-21,849.80

Finding the Fourth Proportional to 39,754.12, 54,862.16 and 21,849.80

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Solution

The fourth proportional to 39,754.12, 54,862.16 and 21,849.80 is: 30,153.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.12 : 54,862.16 = 21,849.80 : x
  2. Step 2: Convert to fraction form
    39,754.12/54,862.16 = 21,849.80/x
  3. Step 3: Cross multiply
    39,754.12x = 54,862.16 × 21,849.80
  4. Step 4: Simplify right side
    39,754.12x = 1,198,727,223.57
  5. Step 5: Solve for x
    x = 1,198,727,223.57/39,754.12
  6. Step 6: Final answer
    x = 30,153.53

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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.