Home / 21,296.96-29,387.24-11,736.64

Finding the Fourth Proportional to 21,296.96, 29,387.24 and 11,736.64

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Solution

The fourth proportional to 21,296.96, 29,387.24 and 11,736.64 is: 16,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,296.96 : 29,387.24 = 11,736.64 : x
  2. Step 2: Convert to fraction form
    21,296.96/29,387.24 = 11,736.64/x
  3. Step 3: Cross multiply
    21,296.96x = 29,387.24 × 11,736.64
  4. Step 4: Simplify right side
    21,296.96x = 344,907,456.47
  5. Step 5: Solve for x
    x = 344,907,456.47/21,296.96
  6. Step 6: Final answer
    x = 16,195.15

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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.