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Finding the Third Proportional to 21,393 and 33,255.75

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Solution

The third proportional to 21,393 and 33,255.75 is: 51,696.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393 : 33,255.75 = 33,255.75 : x
  2. Step 2: Convert to fraction form
    21,393/33,255.75 = 33,255.75/x
  3. Step 3: Cross multiply
    21,393x = 33,255.75 × 33,255.75
  4. Step 4: Simplify right side
    21,393x = 1,105,944,908.06
  5. Step 5: Solve for x
    x = 1,105,944,908.06/21,393
  6. Step 6: Final answer
    x = 51,696.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.