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Finding the Third Proportional to 13,159.88 and 19,681.88

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Solution

The third proportional to 13,159.88 and 19,681.88 is: 29,436.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.88 : 19,681.88 = 19,681.88 : x
  2. Step 2: Convert to fraction form
    13,159.88/19,681.88 = 19,681.88/x
  3. Step 3: Cross multiply
    13,159.88x = 19,681.88 × 19,681.88
  4. Step 4: Simplify right side
    13,159.88x = 387,376,203.52
  5. Step 5: Solve for x
    x = 387,376,203.52/13,159.88
  6. Step 6: Final answer
    x = 29,436.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.