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Finding the Third Proportional to 18,840.38 and 29,145.94

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Solution

The third proportional to 18,840.38 and 29,145.94 is: 45,088.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.38 : 29,145.94 = 29,145.94 : x
  2. Step 2: Convert to fraction form
    18,840.38/29,145.94 = 29,145.94/x
  3. Step 3: Cross multiply
    18,840.38x = 29,145.94 × 29,145.94
  4. Step 4: Simplify right side
    18,840.38x = 849,485,672.75
  5. Step 5: Solve for x
    x = 849,485,672.75/18,840.38
  6. Step 6: Final answer
    x = 45,088.58

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.