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Finding the Third Proportional to 14,155 and 21,229

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Solution

The third proportional to 14,155 and 21,229 is: 31,838.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155 : 21,229 = 21,229 : x
  2. Step 2: Convert to fraction form
    14,155/21,229 = 21,229/x
  3. Step 3: Cross multiply
    14,155x = 21,229 × 21,229
  4. Step 4: Simplify right side
    14,155x = 450,670,441
  5. Step 5: Solve for x
    x = 450,670,441/14,155
  6. Step 6: Final answer
    x = 31,838.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.