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Finding the Third Proportional to 19,600 and 29,810

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Solution

The third proportional to 19,600 and 29,810 is: 45,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,600 : 29,810 = 29,810 : x
  2. Step 2: Convert to fraction form
    19,600/29,810 = 29,810/x
  3. Step 3: Cross multiply
    19,600x = 29,810 × 29,810
  4. Step 4: Simplify right side
    19,600x = 888,636,100
  5. Step 5: Solve for x
    x = 888,636,100/19,600
  6. Step 6: Final answer
    x = 45,338.58

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.