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Finding the Third Proportional to 28,147 and 43,437

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Solution

The third proportional to 28,147 and 43,437 is: 67,032.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147 : 43,437 = 43,437 : x
  2. Step 2: Convert to fraction form
    28,147/43,437 = 43,437/x
  3. Step 3: Cross multiply
    28,147x = 43,437 × 43,437
  4. Step 4: Simplify right side
    28,147x = 1,886,772,969
  5. Step 5: Solve for x
    x = 1,886,772,969/28,147
  6. Step 6: Final answer
    x = 67,032.83

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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.