Home / 21,954.23-30,296.92-11,882.80

Finding the Fourth Proportional to 21,954.23, 30,296.92 and 11,882.80

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Solution

The fourth proportional to 21,954.23, 30,296.92 and 11,882.80 is: 16,398.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.23 : 30,296.92 = 11,882.80 : x
  2. Step 2: Convert to fraction form
    21,954.23/30,296.92 = 11,882.80/x
  3. Step 3: Cross multiply
    21,954.23x = 30,296.92 × 11,882.80
  4. Step 4: Simplify right side
    21,954.23x = 360,012,287.01
  5. Step 5: Solve for x
    x = 360,012,287.01/21,954.23
  6. Step 6: Final answer
    x = 16,398.31

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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.