Home / 19,157.43-28,738.20-8,066.61

Finding the Fourth Proportional to 19,157.43, 28,738.20 and 8,066.61

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Solution

The fourth proportional to 19,157.43, 28,738.20 and 8,066.61 is: 12,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.43 : 28,738.20 = 8,066.61 : x
  2. Step 2: Convert to fraction form
    19,157.43/28,738.20 = 8,066.61/x
  3. Step 3: Cross multiply
    19,157.43x = 28,738.20 × 8,066.61
  4. Step 4: Simplify right side
    19,157.43x = 231,819,851.50
  5. Step 5: Solve for x
    x = 231,819,851.50/19,157.43
  6. Step 6: Final answer
    x = 12,100.78

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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.