Home / 21,232.80-29,301.68-11,801.36

Finding the Fourth Proportional to 21,232.80, 29,301.68 and 11,801.36

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Solution

The fourth proportional to 21,232.80, 29,301.68 and 11,801.36 is: 16,286.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.80 : 29,301.68 = 11,801.36 : x
  2. Step 2: Convert to fraction form
    21,232.80/29,301.68 = 11,801.36/x
  3. Step 3: Cross multiply
    21,232.80x = 29,301.68 × 11,801.36
  4. Step 4: Simplify right side
    21,232.80x = 345,799,674.28
  5. Step 5: Solve for x
    x = 345,799,674.28/21,232.80
  6. Step 6: Final answer
    x = 16,286.11

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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.