Home / 25,251.75-34,858.35-15,825.78

Finding the Fourth Proportional to 25,251.75, 34,858.35 and 15,825.78

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Solution

The fourth proportional to 25,251.75, 34,858.35 and 15,825.78 is: 21,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,251.75 : 34,858.35 = 15,825.78 : x
  2. Step 2: Convert to fraction form
    25,251.75/34,858.35 = 15,825.78/x
  3. Step 3: Cross multiply
    25,251.75x = 34,858.35 × 15,825.78
  4. Step 4: Simplify right side
    25,251.75x = 551,660,578.26
  5. Step 5: Solve for x
    x = 551,660,578.26/25,251.75
  6. Step 6: Final answer
    x = 21,846.43

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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.