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Finding the Third Proportional to 22,428 and 47,145

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Solution

The third proportional to 22,428 and 47,145 is: 99,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,428 : 47,145 = 47,145 : x
  2. Step 2: Convert to fraction form
    22,428/47,145 = 47,145/x
  3. Step 3: Cross multiply
    22,428x = 47,145 × 47,145
  4. Step 4: Simplify right side
    22,428x = 2,222,651,025
  5. Step 5: Solve for x
    x = 2,222,651,025/22,428
  6. Step 6: Final answer
    x = 99,101.62

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.