Home / 25,418.12-35,065.14-15,991.88

Finding the Fourth Proportional to 25,418.12, 35,065.14 and 15,991.88

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Solution

The fourth proportional to 25,418.12, 35,065.14 and 15,991.88 is: 22,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.12 : 35,065.14 = 15,991.88 : x
  2. Step 2: Convert to fraction form
    25,418.12/35,065.14 = 15,991.88/x
  3. Step 3: Cross multiply
    25,418.12x = 35,065.14 × 15,991.88
  4. Step 4: Simplify right side
    25,418.12x = 560,757,511.06
  5. Step 5: Solve for x
    x = 560,757,511.06/25,418.12
  6. Step 6: Final answer
    x = 22,061.33

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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.