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Finding the Third Proportional to 14,156 and 21,190

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Solution

The third proportional to 14,156 and 21,190 is: 31,719.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,156 : 21,190 = 21,190 : x
  2. Step 2: Convert to fraction form
    14,156/21,190 = 21,190/x
  3. Step 3: Cross multiply
    14,156x = 21,190 × 21,190
  4. Step 4: Simplify right side
    14,156x = 449,016,100
  5. Step 5: Solve for x
    x = 449,016,100/14,156
  6. Step 6: Final answer
    x = 31,719.14

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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.