Home / 25,894.20-35,724.78-15,278.52

Finding the Fourth Proportional to 25,894.20, 35,724.78 and 15,278.52

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Solution

The fourth proportional to 25,894.20, 35,724.78 and 15,278.52 is: 21,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,894.20 : 35,724.78 = 15,278.52 : x
  2. Step 2: Convert to fraction form
    25,894.20/35,724.78 = 15,278.52/x
  3. Step 3: Cross multiply
    25,894.20x = 35,724.78 × 15,278.52
  4. Step 4: Simplify right side
    25,894.20x = 545,821,765.73
  5. Step 5: Solve for x
    x = 545,821,765.73/25,894.20
  6. Step 6: Final answer
    x = 21,078.92

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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.