Home / 19,842.20-27,383.09-11,882.90

Finding the Fourth Proportional to 19,842.20, 27,383.09 and 11,882.90

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Solution

The fourth proportional to 19,842.20, 27,383.09 and 11,882.90 is: 16,398.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.20 : 27,383.09 = 11,882.90 : x
  2. Step 2: Convert to fraction form
    19,842.20/27,383.09 = 11,882.90/x
  3. Step 3: Cross multiply
    19,842.20x = 27,383.09 × 11,882.90
  4. Step 4: Simplify right side
    19,842.20x = 325,390,323.83
  5. Step 5: Solve for x
    x = 325,390,323.83/19,842.20
  6. Step 6: Final answer
    x = 16,398.91

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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.