Home / 27,687.91-38,259.30-19,716.30

Finding the Fourth Proportional to 27,687.91, 38,259.30 and 19,716.30

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Solution

The fourth proportional to 27,687.91, 38,259.30 and 19,716.30 is: 27,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,687.91 : 38,259.30 = 19,716.30 : x
  2. Step 2: Convert to fraction form
    27,687.91/38,259.30 = 19,716.30/x
  3. Step 3: Cross multiply
    27,687.91x = 38,259.30 × 19,716.30
  4. Step 4: Simplify right side
    27,687.91x = 754,331,836.59
  5. Step 5: Solve for x
    x = 754,331,836.59/27,687.91
  6. Step 6: Final answer
    x = 27,244.09

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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.