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Finding the Third Proportional to 10,378.75 and 21,495.75

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Solution

The third proportional to 10,378.75 and 21,495.75 is: 44,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.75 : 21,495.75 = 21,495.75 : x
  2. Step 2: Convert to fraction form
    10,378.75/21,495.75 = 21,495.75/x
  3. Step 3: Cross multiply
    10,378.75x = 21,495.75 × 21,495.75
  4. Step 4: Simplify right side
    10,378.75x = 462,067,268.06
  5. Step 5: Solve for x
    x = 462,067,268.06/10,378.75
  6. Step 6: Final answer
    x = 44,520.51

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.