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Finding the Third Proportional to 20,430 and 29,754

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Solution

The third proportional to 20,430 and 29,754 is: 43,333.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430 : 29,754 = 29,754 : x
  2. Step 2: Convert to fraction form
    20,430/29,754 = 29,754/x
  3. Step 3: Cross multiply
    20,430x = 29,754 × 29,754
  4. Step 4: Simplify right side
    20,430x = 885,300,516
  5. Step 5: Solve for x
    x = 885,300,516/20,430
  6. Step 6: Final answer
    x = 43,333.36

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.