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Finding the Third Proportional to 8,946 and 19,430

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Solution

The third proportional to 8,946 and 19,430 is: 42,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946 : 19,430 = 19,430 : x
  2. Step 2: Convert to fraction form
    8,946/19,430 = 19,430/x
  3. Step 3: Cross multiply
    8,946x = 19,430 × 19,430
  4. Step 4: Simplify right side
    8,946x = 377,524,900
  5. Step 5: Solve for x
    x = 377,524,900/8,946
  6. Step 6: Final answer
    x = 42,200.41

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.