Home / 17,008.20-25,512.30-15,112.80

Finding the Fourth Proportional to 17,008.20, 25,512.30 and 15,112.80

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Solution

The fourth proportional to 17,008.20, 25,512.30 and 15,112.80 is: 22,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,008.20 : 25,512.30 = 15,112.80 : x
  2. Step 2: Convert to fraction form
    17,008.20/25,512.30 = 15,112.80/x
  3. Step 3: Cross multiply
    17,008.20x = 25,512.30 × 15,112.80
  4. Step 4: Simplify right side
    17,008.20x = 385,562,287.44
  5. Step 5: Solve for x
    x = 385,562,287.44/17,008.20
  6. Step 6: Final answer
    x = 22,669.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.