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Finding the Third Proportional to 11,256.19 and 20,905.88

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Solution

The third proportional to 11,256.19 and 20,905.88 is: 38,828.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.19 : 20,905.88 = 20,905.88 : x
  2. Step 2: Convert to fraction form
    11,256.19/20,905.88 = 20,905.88/x
  3. Step 3: Cross multiply
    11,256.19x = 20,905.88 × 20,905.88
  4. Step 4: Simplify right side
    11,256.19x = 437,055,609.52
  5. Step 5: Solve for x
    x = 437,055,609.52/11,256.19
  6. Step 6: Final answer
    x = 38,828.03

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.