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Finding the Third Proportional to 20,316 and 28,992

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Solution

The third proportional to 20,316 and 28,992 is: 41,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316 : 28,992 = 28,992 : x
  2. Step 2: Convert to fraction form
    20,316/28,992 = 28,992/x
  3. Step 3: Cross multiply
    20,316x = 28,992 × 28,992
  4. Step 4: Simplify right side
    20,316x = 840,536,064
  5. Step 5: Solve for x
    x = 840,536,064/20,316
  6. Step 6: Final answer
    x = 41,373.11

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.