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Finding the Third Proportional to 19,466 and 39,778

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Solution

The third proportional to 19,466 and 39,778 is: 81,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,466 : 39,778 = 39,778 : x
  2. Step 2: Convert to fraction form
    19,466/39,778 = 39,778/x
  3. Step 3: Cross multiply
    19,466x = 39,778 × 39,778
  4. Step 4: Simplify right side
    19,466x = 1,582,289,284
  5. Step 5: Solve for x
    x = 1,582,289,284/19,466
  6. Step 6: Final answer
    x = 81,284.77

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.