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Finding the Third Proportional to 13,321 and 28,587

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Solution

The third proportional to 13,321 and 28,587 is: 61,347.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321 : 28,587 = 28,587 : x
  2. Step 2: Convert to fraction form
    13,321/28,587 = 28,587/x
  3. Step 3: Cross multiply
    13,321x = 28,587 × 28,587
  4. Step 4: Simplify right side
    13,321x = 817,216,569
  5. Step 5: Solve for x
    x = 817,216,569/13,321
  6. Step 6: Final answer
    x = 61,347.99

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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.