Home / 19,819.38-27,351.12-10,866.35

Finding the Fourth Proportional to 19,819.38, 27,351.12 and 10,866.35

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Solution

The fourth proportional to 19,819.38, 27,351.12 and 10,866.35 is: 14,995.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.38 : 27,351.12 = 10,866.35 : x
  2. Step 2: Convert to fraction form
    19,819.38/27,351.12 = 10,866.35/x
  3. Step 3: Cross multiply
    19,819.38x = 27,351.12 × 10,866.35
  4. Step 4: Simplify right side
    19,819.38x = 297,206,651.72
  5. Step 5: Solve for x
    x = 297,206,651.72/19,819.38
  6. Step 6: Final answer
    x = 14,995.76

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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.