Home / 27,786.69-38,346.48-15,211.44

Finding the Fourth Proportional to 27,786.69, 38,346.48 and 15,211.44

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Solution

The fourth proportional to 27,786.69, 38,346.48 and 15,211.44 is: 20,992.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,786.69 : 38,346.48 = 15,211.44 : x
  2. Step 2: Convert to fraction form
    27,786.69/38,346.48 = 15,211.44/x
  3. Step 3: Cross multiply
    27,786.69x = 38,346.48 × 15,211.44
  4. Step 4: Simplify right side
    27,786.69x = 583,305,179.73
  5. Step 5: Solve for x
    x = 583,305,179.73/27,786.69
  6. Step 6: Final answer
    x = 20,992.25

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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.