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Finding the Third Proportional to 28,197.56 and 39,420.56

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Solution

The third proportional to 28,197.56 and 39,420.56 is: 55,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.56 : 39,420.56 = 39,420.56 : x
  2. Step 2: Convert to fraction form
    28,197.56/39,420.56 = 39,420.56/x
  3. Step 3: Cross multiply
    28,197.56x = 39,420.56 × 39,420.56
  4. Step 4: Simplify right side
    28,197.56x = 1,553,980,747.82
  5. Step 5: Solve for x
    x = 1,553,980,747.82/28,197.56
  6. Step 6: Final answer
    x = 55,110.46

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.