Home / 25,859.82-35,687.79-15,111.75

Finding the Fourth Proportional to 25,859.82, 35,687.79 and 15,111.75

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Solution

The fourth proportional to 25,859.82, 35,687.79 and 15,111.75 is: 20,854.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,859.82 : 35,687.79 = 15,111.75 : x
  2. Step 2: Convert to fraction form
    25,859.82/35,687.79 = 15,111.75/x
  3. Step 3: Cross multiply
    25,859.82x = 35,687.79 × 15,111.75
  4. Step 4: Simplify right side
    25,859.82x = 539,304,960.53
  5. Step 5: Solve for x
    x = 539,304,960.53/25,859.82
  6. Step 6: Final answer
    x = 20,854.94

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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.