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Finding the Third Proportional to 9,111 and 20,005.50

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Solution

The third proportional to 9,111 and 20,005.50 is: 43,927.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111 : 20,005.50 = 20,005.50 : x
  2. Step 2: Convert to fraction form
    9,111/20,005.50 = 20,005.50/x
  3. Step 3: Cross multiply
    9,111x = 20,005.50 × 20,005.50
  4. Step 4: Simplify right side
    9,111x = 400,220,030.25
  5. Step 5: Solve for x
    x = 400,220,030.25/9,111
  6. Step 6: Final answer
    x = 43,927.12

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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.