Home / 28,615.68-39,540.96-22,375.44

Finding the Fourth Proportional to 28,615.68, 39,540.96 and 22,375.44

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Solution

The fourth proportional to 28,615.68, 39,540.96 and 22,375.44 is: 30,918.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.68 : 39,540.96 = 22,375.44 : x
  2. Step 2: Convert to fraction form
    28,615.68/39,540.96 = 22,375.44/x
  3. Step 3: Cross multiply
    28,615.68x = 39,540.96 × 22,375.44
  4. Step 4: Simplify right side
    28,615.68x = 884,746,378.02
  5. Step 5: Solve for x
    x = 884,746,378.02/28,615.68
  6. Step 6: Final answer
    x = 30,918.24

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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.