Home / 39,448.60-54,436.68-21,540.04

Finding the Fourth Proportional to 39,448.60, 54,436.68 and 21,540.04

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Solution

The fourth proportional to 39,448.60, 54,436.68 and 21,540.04 is: 29,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,448.60 : 54,436.68 = 21,540.04 : x
  2. Step 2: Convert to fraction form
    39,448.60/54,436.68 = 21,540.04/x
  3. Step 3: Cross multiply
    39,448.60x = 54,436.68 × 21,540.04
  4. Step 4: Simplify right side
    39,448.60x = 1,172,568,264.67
  5. Step 5: Solve for x
    x = 1,172,568,264.67/39,448.60
  6. Step 6: Final answer
    x = 29,723.95

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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.