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Finding the Third Proportional to 8,878.50 and 20,547

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Solution

The third proportional to 8,878.50 and 20,547 is: 47,550.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.50 : 20,547 = 20,547 : x
  2. Step 2: Convert to fraction form
    8,878.50/20,547 = 20,547/x
  3. Step 3: Cross multiply
    8,878.50x = 20,547 × 20,547
  4. Step 4: Simplify right side
    8,878.50x = 422,179,209
  5. Step 5: Solve for x
    x = 422,179,209/8,878.50
  6. Step 6: Final answer
    x = 47,550.74

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.