Home / 19,984.97-27,576.91-11,919.07

Finding the Fourth Proportional to 19,984.97, 27,576.91 and 11,919.07

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Solution

The fourth proportional to 19,984.97, 27,576.91 and 11,919.07 is: 16,446.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.97 : 27,576.91 = 11,919.07 : x
  2. Step 2: Convert to fraction form
    19,984.97/27,576.91 = 11,919.07/x
  3. Step 3: Cross multiply
    19,984.97x = 27,576.91 × 11,919.07
  4. Step 4: Simplify right side
    19,984.97x = 328,691,048.45
  5. Step 5: Solve for x
    x = 328,691,048.45/19,984.97
  6. Step 6: Final answer
    x = 16,446.91

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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.