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Finding the Third Proportional to 19,348 and 39,228

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Solution

The third proportional to 19,348 and 39,228 is: 79,534.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348 : 39,228 = 39,228 : x
  2. Step 2: Convert to fraction form
    19,348/39,228 = 39,228/x
  3. Step 3: Cross multiply
    19,348x = 39,228 × 39,228
  4. Step 4: Simplify right side
    19,348x = 1,538,835,984
  5. Step 5: Solve for x
    x = 1,538,835,984/19,348
  6. Step 6: Final answer
    x = 79,534.63

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.