Home / 25,138.80-34,690.20-15,067.64

Finding the Fourth Proportional to 25,138.80, 34,690.20 and 15,067.64

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Solution

The fourth proportional to 25,138.80, 34,690.20 and 15,067.64 is: 20,792.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,138.80 : 34,690.20 = 15,067.64 : x
  2. Step 2: Convert to fraction form
    25,138.80/34,690.20 = 15,067.64/x
  3. Step 3: Cross multiply
    25,138.80x = 34,690.20 × 15,067.64
  4. Step 4: Simplify right side
    25,138.80x = 522,699,445.13
  5. Step 5: Solve for x
    x = 522,699,445.13/25,138.80
  6. Step 6: Final answer
    x = 20,792.54

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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.