Home / 19,979.70-27,571.96-11,027.22

Finding the Fourth Proportional to 19,979.70, 27,571.96 and 11,027.22

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Solution

The fourth proportional to 19,979.70, 27,571.96 and 11,027.22 is: 15,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.70 : 27,571.96 = 11,027.22 : x
  2. Step 2: Convert to fraction form
    19,979.70/27,571.96 = 11,027.22/x
  3. Step 3: Cross multiply
    19,979.70x = 27,571.96 × 11,027.22
  4. Step 4: Simplify right side
    19,979.70x = 304,042,068.75
  5. Step 5: Solve for x
    x = 304,042,068.75/19,979.70
  6. Step 6: Final answer
    x = 15,217.55

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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.