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Finding the Third Proportional to 28,000 and 39,248

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Solution

The third proportional to 28,000 and 39,248 is: 55,014.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000 : 39,248 = 39,248 : x
  2. Step 2: Convert to fraction form
    28,000/39,248 = 39,248/x
  3. Step 3: Cross multiply
    28,000x = 39,248 × 39,248
  4. Step 4: Simplify right side
    28,000x = 1,540,405,504
  5. Step 5: Solve for x
    x = 1,540,405,504/28,000
  6. Step 6: Final answer
    x = 55,014.48

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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.