Home / 27,767.88-38,279.79-19,796.27

Finding the Fourth Proportional to 27,767.88, 38,279.79 and 19,796.27

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Solution

The fourth proportional to 27,767.88, 38,279.79 and 19,796.27 is: 27,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,767.88 : 38,279.79 = 19,796.27 : x
  2. Step 2: Convert to fraction form
    27,767.88/38,279.79 = 19,796.27/x
  3. Step 3: Cross multiply
    27,767.88x = 38,279.79 × 19,796.27
  4. Step 4: Simplify right side
    27,767.88x = 757,796,866.98
  5. Step 5: Solve for x
    x = 757,796,866.98/27,767.88
  6. Step 6: Final answer
    x = 27,290.41

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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.