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Finding the Third Proportional to 28,559 and 43,928

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Solution

The third proportional to 28,559 and 43,928 is: 67,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559 : 43,928 = 43,928 : x
  2. Step 2: Convert to fraction form
    28,559/43,928 = 43,928/x
  3. Step 3: Cross multiply
    28,559x = 43,928 × 43,928
  4. Step 4: Simplify right side
    28,559x = 1,929,669,184
  5. Step 5: Solve for x
    x = 1,929,669,184/28,559
  6. Step 6: Final answer
    x = 67,567.81

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.