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Finding the Third Proportional to 19,368 and 29,809

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Solution

The third proportional to 19,368 and 29,809 is: 45,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,368 : 29,809 = 29,809 : x
  2. Step 2: Convert to fraction form
    19,368/29,809 = 29,809/x
  3. Step 3: Cross multiply
    19,368x = 29,809 × 29,809
  4. Step 4: Simplify right side
    19,368x = 888,576,481
  5. Step 5: Solve for x
    x = 888,576,481/19,368
  6. Step 6: Final answer
    x = 45,878.59

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.