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Finding the Third Proportional to 11,430 and 23,178

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Solution

The third proportional to 11,430 and 23,178 is: 47,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430 : 23,178 = 23,178 : x
  2. Step 2: Convert to fraction form
    11,430/23,178 = 23,178/x
  3. Step 3: Cross multiply
    11,430x = 23,178 × 23,178
  4. Step 4: Simplify right side
    11,430x = 537,219,684
  5. Step 5: Solve for x
    x = 537,219,684/11,430
  6. Step 6: Final answer
    x = 47,000.85

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.