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Finding the Third Proportional to 13,240 and 28,403

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Solution

The third proportional to 13,240 and 28,403 is: 60,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240 : 28,403 = 28,403 : x
  2. Step 2: Convert to fraction form
    13,240/28,403 = 28,403/x
  3. Step 3: Cross multiply
    13,240x = 28,403 × 28,403
  4. Step 4: Simplify right side
    13,240x = 806,730,409
  5. Step 5: Solve for x
    x = 806,730,409/13,240
  6. Step 6: Final answer
    x = 60,931.30

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.