Home / 27,645.35-38,151.36-16,891.97

Finding the Fourth Proportional to 27,645.35, 38,151.36 and 16,891.97

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Solution

The fourth proportional to 27,645.35, 38,151.36 and 16,891.97 is: 23,311.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,645.35 : 38,151.36 = 16,891.97 : x
  2. Step 2: Convert to fraction form
    27,645.35/38,151.36 = 16,891.97/x
  3. Step 3: Cross multiply
    27,645.35x = 38,151.36 × 16,891.97
  4. Step 4: Simplify right side
    27,645.35x = 644,451,628.58
  5. Step 5: Solve for x
    x = 644,451,628.58/27,645.35
  6. Step 6: Final answer
    x = 23,311.39

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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.