Home / 25,891.12-35,715.18-15,540.22

Finding the Fourth Proportional to 25,891.12, 35,715.18 and 15,540.22

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Solution

The fourth proportional to 25,891.12, 35,715.18 and 15,540.22 is: 21,436.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,891.12 : 35,715.18 = 15,540.22 : x
  2. Step 2: Convert to fraction form
    25,891.12/35,715.18 = 15,540.22/x
  3. Step 3: Cross multiply
    25,891.12x = 35,715.18 × 15,540.22
  4. Step 4: Simplify right side
    25,891.12x = 555,021,754.54
  5. Step 5: Solve for x
    x = 555,021,754.54/25,891.12
  6. Step 6: Final answer
    x = 21,436.76

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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.