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Finding the Third Proportional to 5,220 and 11,020.50

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Solution

The third proportional to 5,220 and 11,020.50 is: 23,266.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220 : 11,020.50 = 11,020.50 : x
  2. Step 2: Convert to fraction form
    5,220/11,020.50 = 11,020.50/x
  3. Step 3: Cross multiply
    5,220x = 11,020.50 × 11,020.50
  4. Step 4: Simplify right side
    5,220x = 121,451,420.25
  5. Step 5: Solve for x
    x = 121,451,420.25/5,220
  6. Step 6: Final answer
    x = 23,266.56

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.