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Finding the Third Proportional to 15,354 and 18,175.50

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Solution

The third proportional to 15,354 and 18,175.50 is: 21,515.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354 : 18,175.50 = 18,175.50 : x
  2. Step 2: Convert to fraction form
    15,354/18,175.50 = 18,175.50/x
  3. Step 3: Cross multiply
    15,354x = 18,175.50 × 18,175.50
  4. Step 4: Simplify right side
    15,354x = 330,348,800.25
  5. Step 5: Solve for x
    x = 330,348,800.25/15,354
  6. Step 6: Final answer
    x = 21,515.49

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.