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Finding the Third Proportional to 28,988 and 38,290

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Solution

The third proportional to 28,988 and 38,290 is: 50,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988 : 38,290 = 38,290 : x
  2. Step 2: Convert to fraction form
    28,988/38,290 = 38,290/x
  3. Step 3: Cross multiply
    28,988x = 38,290 × 38,290
  4. Step 4: Simplify right side
    28,988x = 1,466,124,100
  5. Step 5: Solve for x
    x = 1,466,124,100/28,988
  6. Step 6: Final answer
    x = 50,576.93

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.