Home / 25,731.24-35,517.87-15,124.02

Finding the Fourth Proportional to 25,731.24, 35,517.87 and 15,124.02

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Solution

The fourth proportional to 25,731.24, 35,517.87 and 15,124.02 is: 20,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.24 : 35,517.87 = 15,124.02 : x
  2. Step 2: Convert to fraction form
    25,731.24/35,517.87 = 15,124.02/x
  3. Step 3: Cross multiply
    25,731.24x = 35,517.87 × 15,124.02
  4. Step 4: Simplify right side
    25,731.24x = 537,172,976.24
  5. Step 5: Solve for x
    x = 537,172,976.24/25,731.24
  6. Step 6: Final answer
    x = 20,876.30

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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.