Home / 19,979.89-27,571.89-11,027.68

Finding the Fourth Proportional to 19,979.89, 27,571.89 and 11,027.68

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Solution

The fourth proportional to 19,979.89, 27,571.89 and 11,027.68 is: 15,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.89 : 27,571.89 = 11,027.68 : x
  2. Step 2: Convert to fraction form
    19,979.89/27,571.89 = 11,027.68/x
  3. Step 3: Cross multiply
    19,979.89x = 27,571.89 × 11,027.68
  4. Step 4: Simplify right side
    19,979.89x = 304,053,979.92
  5. Step 5: Solve for x
    x = 304,053,979.92/19,979.89
  6. Step 6: Final answer
    x = 15,218.00

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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.