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Finding the Third Proportional to 18,864 and 35,316

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Solution

The third proportional to 18,864 and 35,316 is: 66,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864 : 35,316 = 35,316 : x
  2. Step 2: Convert to fraction form
    18,864/35,316 = 35,316/x
  3. Step 3: Cross multiply
    18,864x = 35,316 × 35,316
  4. Step 4: Simplify right side
    18,864x = 1,247,219,856
  5. Step 5: Solve for x
    x = 1,247,219,856/18,864
  6. Step 6: Final answer
    x = 66,116.40

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.