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Finding the Third Proportional to 15,109.03 and 21,637.13

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Solution

The third proportional to 15,109.03 and 21,637.13 is: 30,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,109.03 : 21,637.13 = 21,637.13 : x
  2. Step 2: Convert to fraction form
    15,109.03/21,637.13 = 21,637.13/x
  3. Step 3: Cross multiply
    15,109.03x = 21,637.13 × 21,637.13
  4. Step 4: Simplify right side
    15,109.03x = 468,165,178.27
  5. Step 5: Solve for x
    x = 468,165,178.27/15,109.03
  6. Step 6: Final answer
    x = 30,985.78

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.