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Finding the Third Proportional to 13,335.75 and 20,653.88

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Solution

The third proportional to 13,335.75 and 20,653.88 is: 31,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.75 : 20,653.88 = 20,653.88 : x
  2. Step 2: Convert to fraction form
    13,335.75/20,653.88 = 20,653.88/x
  3. Step 3: Cross multiply
    13,335.75x = 20,653.88 × 20,653.88
  4. Step 4: Simplify right side
    13,335.75x = 426,582,552.52
  5. Step 5: Solve for x
    x = 426,582,552.52/13,335.75
  6. Step 6: Final answer
    x = 31,987.89

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.