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Finding the Third Proportional to 30,018 and 40,282.50

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Solution

The third proportional to 30,018 and 40,282.50 is: 54,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,018 : 40,282.50 = 40,282.50 : x
  2. Step 2: Convert to fraction form
    30,018/40,282.50 = 40,282.50/x
  3. Step 3: Cross multiply
    30,018x = 40,282.50 × 40,282.50
  4. Step 4: Simplify right side
    30,018x = 1,622,679,806.25
  5. Step 5: Solve for x
    x = 1,622,679,806.25/30,018
  6. Step 6: Final answer
    x = 54,056.89

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.