Home / 39,766.68-54,878.70-21,862.44

Finding the Fourth Proportional to 39,766.68, 54,878.70 and 21,862.44

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Solution

The fourth proportional to 39,766.68, 54,878.70 and 21,862.44 is: 30,170.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,766.68 : 54,878.70 = 21,862.44 : x
  2. Step 2: Convert to fraction form
    39,766.68/54,878.70 = 21,862.44/x
  3. Step 3: Cross multiply
    39,766.68x = 54,878.70 × 21,862.44
  4. Step 4: Simplify right side
    39,766.68x = 1,199,782,286.03
  5. Step 5: Solve for x
    x = 1,199,782,286.03/39,766.68
  6. Step 6: Final answer
    x = 30,170.54

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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.