Home / 17,720.20-24,449.46-11,425

Finding the Fourth Proportional to 17,720.20, 24,449.46 and 11,425

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Solution

The fourth proportional to 17,720.20, 24,449.46 and 11,425 is: 15,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.20 : 24,449.46 = 11,425 : x
  2. Step 2: Convert to fraction form
    17,720.20/24,449.46 = 11,425/x
  3. Step 3: Cross multiply
    17,720.20x = 24,449.46 × 11,425
  4. Step 4: Simplify right side
    17,720.20x = 279,335,080.50
  5. Step 5: Solve for x
    x = 279,335,080.50/17,720.20
  6. Step 6: Final answer
    x = 15,763.65

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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.