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Finding the Third Proportional to 13,143.44 and 28,505.20

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Solution

The third proportional to 13,143.44 and 28,505.20 is: 61,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.44 : 28,505.20 = 28,505.20 : x
  2. Step 2: Convert to fraction form
    13,143.44/28,505.20 = 28,505.20/x
  3. Step 3: Cross multiply
    13,143.44x = 28,505.20 × 28,505.20
  4. Step 4: Simplify right side
    13,143.44x = 812,546,271.15
  5. Step 5: Solve for x
    x = 812,546,271.15/13,143.44
  6. Step 6: Final answer
    x = 61,821.45

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.