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Finding the Third Proportional to 5,403 and 13,015.50

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Solution

The third proportional to 5,403 and 13,015.50 is: 31,353.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403 : 13,015.50 = 13,015.50 : x
  2. Step 2: Convert to fraction form
    5,403/13,015.50 = 13,015.50/x
  3. Step 3: Cross multiply
    5,403x = 13,015.50 × 13,015.50
  4. Step 4: Simplify right side
    5,403x = 169,403,240.25
  5. Step 5: Solve for x
    x = 169,403,240.25/5,403
  6. Step 6: Final answer
    x = 31,353.55

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.