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Finding the Third Proportional to 13,809 and 30,328.50

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Solution

The third proportional to 13,809 and 30,328.50 is: 66,610.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809 : 30,328.50 = 30,328.50 : x
  2. Step 2: Convert to fraction form
    13,809/30,328.50 = 30,328.50/x
  3. Step 3: Cross multiply
    13,809x = 30,328.50 × 30,328.50
  4. Step 4: Simplify right side
    13,809x = 919,817,912.25
  5. Step 5: Solve for x
    x = 919,817,912.25/13,809
  6. Step 6: Final answer
    x = 66,610.03

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.