Home / 28,317.80-39,067.66-18,245.44

Finding the Fourth Proportional to 28,317.80, 39,067.66 and 18,245.44

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Solution

The fourth proportional to 28,317.80, 39,067.66 and 18,245.44 is: 25,171.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.80 : 39,067.66 = 18,245.44 : x
  2. Step 2: Convert to fraction form
    28,317.80/39,067.66 = 18,245.44/x
  3. Step 3: Cross multiply
    28,317.80x = 39,067.66 × 18,245.44
  4. Step 4: Simplify right side
    28,317.80x = 712,806,646.47
  5. Step 5: Solve for x
    x = 712,806,646.47/28,317.80
  6. Step 6: Final answer
    x = 25,171.68

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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.