Home / 25,839.20-35,661.40-15,229.82

Finding the Fourth Proportional to 25,839.20, 35,661.40 and 15,229.82

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Solution

The fourth proportional to 25,839.20, 35,661.40 and 15,229.82 is: 21,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,839.20 : 35,661.40 = 15,229.82 : x
  2. Step 2: Convert to fraction form
    25,839.20/35,661.40 = 15,229.82/x
  3. Step 3: Cross multiply
    25,839.20x = 35,661.40 × 15,229.82
  4. Step 4: Simplify right side
    25,839.20x = 543,116,702.95
  5. Step 5: Solve for x
    x = 543,116,702.95/25,839.20
  6. Step 6: Final answer
    x = 21,019.10

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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.