Home / 25,786.60-35,587.78-15,179.56

Finding the Fourth Proportional to 25,786.60, 35,587.78 and 15,179.56

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Solution

The fourth proportional to 25,786.60, 35,587.78 and 15,179.56 is: 20,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,786.60 : 35,587.78 = 15,179.56 : x
  2. Step 2: Convert to fraction form
    25,786.60/35,587.78 = 15,179.56/x
  3. Step 3: Cross multiply
    25,786.60x = 35,587.78 × 15,179.56
  4. Step 4: Simplify right side
    25,786.60x = 540,206,841.78
  5. Step 5: Solve for x
    x = 540,206,841.78/25,786.60
  6. Step 6: Final answer
    x = 20,949.13

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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.