Home / 19,819.80-27,351.36-10,867.68

Finding the Fourth Proportional to 19,819.80, 27,351.36 and 10,867.68

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Solution

The fourth proportional to 19,819.80, 27,351.36 and 10,867.68 is: 14,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.80 : 27,351.36 = 10,867.68 : x
  2. Step 2: Convert to fraction form
    19,819.80/27,351.36 = 10,867.68/x
  3. Step 3: Cross multiply
    19,819.80x = 27,351.36 × 10,867.68
  4. Step 4: Simplify right side
    19,819.80x = 297,245,828.04
  5. Step 5: Solve for x
    x = 297,245,828.04/19,819.80
  6. Step 6: Final answer
    x = 14,997.42

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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.