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Finding the Third Proportional to 15,129 and 23,013.50

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Solution

The third proportional to 15,129 and 23,013.50 is: 35,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129 : 23,013.50 = 23,013.50 : x
  2. Step 2: Convert to fraction form
    15,129/23,013.50 = 23,013.50/x
  3. Step 3: Cross multiply
    15,129x = 23,013.50 × 23,013.50
  4. Step 4: Simplify right side
    15,129x = 529,621,182.25
  5. Step 5: Solve for x
    x = 529,621,182.25/15,129
  6. Step 6: Final answer
    x = 35,007.02

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.