Home / 19,635.46-27,105.78-12,924.61

Finding the Fourth Proportional to 19,635.46, 27,105.78 and 12,924.61

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Solution

The fourth proportional to 19,635.46, 27,105.78 and 12,924.61 is: 17,841.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.46 : 27,105.78 = 12,924.61 : x
  2. Step 2: Convert to fraction form
    19,635.46/27,105.78 = 12,924.61/x
  3. Step 3: Cross multiply
    19,635.46x = 27,105.78 × 12,924.61
  4. Step 4: Simplify right side
    19,635.46x = 350,331,635.25
  5. Step 5: Solve for x
    x = 350,331,635.25/19,635.46
  6. Step 6: Final answer
    x = 17,841.78

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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.