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Finding the Third Proportional to 7,415.30 and 15,445.69

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Solution

The third proportional to 7,415.30 and 15,445.69 is: 32,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.30 : 15,445.69 = 15,445.69 : x
  2. Step 2: Convert to fraction form
    7,415.30/15,445.69 = 15,445.69/x
  3. Step 3: Cross multiply
    7,415.30x = 15,445.69 × 15,445.69
  4. Step 4: Simplify right side
    7,415.30x = 238,569,262.35
  5. Step 5: Solve for x
    x = 238,569,262.35/7,415.30
  6. Step 6: Final answer
    x = 32,172.58

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.