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Finding the Third Proportional to 18,900.84 and 29,809.27

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Solution

The third proportional to 18,900.84 and 29,809.27 is: 47,013.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.84 : 29,809.27 = 29,809.27 : x
  2. Step 2: Convert to fraction form
    18,900.84/29,809.27 = 29,809.27/x
  3. Step 3: Cross multiply
    18,900.84x = 29,809.27 × 29,809.27
  4. Step 4: Simplify right side
    18,900.84x = 888,592,317.10
  5. Step 5: Solve for x
    x = 888,592,317.10/18,900.84
  6. Step 6: Final answer
    x = 47,013.37

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.