Home / 19,788.97-27,321.53-17,660.83

Finding the Fourth Proportional to 19,788.97, 27,321.53 and 17,660.83

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Solution

The fourth proportional to 19,788.97, 27,321.53 and 17,660.83 is: 24,383.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.97 : 27,321.53 = 17,660.83 : x
  2. Step 2: Convert to fraction form
    19,788.97/27,321.53 = 17,660.83/x
  3. Step 3: Cross multiply
    19,788.97x = 27,321.53 × 17,660.83
  4. Step 4: Simplify right side
    19,788.97x = 482,520,808.37
  5. Step 5: Solve for x
    x = 482,520,808.37/19,788.97
  6. Step 6: Final answer
    x = 24,383.32

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Half scale
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Double scale
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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.