Home / 27,694.24-38,163.12-19,722.40

Finding the Fourth Proportional to 27,694.24, 38,163.12 and 19,722.40

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Solution

The fourth proportional to 27,694.24, 38,163.12 and 19,722.40 is: 27,177.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,694.24 : 38,163.12 = 19,722.40 : x
  2. Step 2: Convert to fraction form
    27,694.24/38,163.12 = 19,722.40/x
  3. Step 3: Cross multiply
    27,694.24x = 38,163.12 × 19,722.40
  4. Step 4: Simplify right side
    27,694.24x = 752,668,317.89
  5. Step 5: Solve for x
    x = 752,668,317.89/27,694.24
  6. Step 6: Final answer
    x = 27,177.79

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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.