Home / 19,668.82-27,162.18-16,819.68

Finding the Fourth Proportional to 19,668.82, 27,162.18 and 16,819.68

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Solution

The fourth proportional to 19,668.82, 27,162.18 and 16,819.68 is: 23,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.82 : 27,162.18 = 16,819.68 : x
  2. Step 2: Convert to fraction form
    19,668.82/27,162.18 = 16,819.68/x
  3. Step 3: Cross multiply
    19,668.82x = 27,162.18 × 16,819.68
  4. Step 4: Simplify right side
    19,668.82x = 456,859,175.70
  5. Step 5: Solve for x
    x = 456,859,175.70/19,668.82
  6. Step 6: Final answer
    x = 23,227.58

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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.