Home / 25,422.75-35,083.41-15,486.75

Finding the Fourth Proportional to 25,422.75, 35,083.41 and 15,486.75

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Solution

The fourth proportional to 25,422.75, 35,083.41 and 15,486.75 is: 21,371.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,422.75 : 35,083.41 = 15,486.75 : x
  2. Step 2: Convert to fraction form
    25,422.75/35,083.41 = 15,486.75/x
  3. Step 3: Cross multiply
    25,422.75x = 35,083.41 × 15,486.75
  4. Step 4: Simplify right side
    25,422.75x = 543,327,922.38
  5. Step 5: Solve for x
    x = 543,327,922.38/25,422.75
  6. Step 6: Final answer
    x = 21,371.72

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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.