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Finding the Third Proportional to 28,703 and 40,431.50

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Solution

The third proportional to 28,703 and 40,431.50 is: 56,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703 : 40,431.50 = 40,431.50 : x
  2. Step 2: Convert to fraction form
    28,703/40,431.50 = 40,431.50/x
  3. Step 3: Cross multiply
    28,703x = 40,431.50 × 40,431.50
  4. Step 4: Simplify right side
    28,703x = 1,634,706,192.25
  5. Step 5: Solve for x
    x = 1,634,706,192.25/28,703
  6. Step 6: Final answer
    x = 56,952.45

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.