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Finding the Fourth Proportional to 20,794.72, 28,703.55 and 16,553.56

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Solution

The fourth proportional to 20,794.72, 28,703.55 and 16,553.56 is: 22,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.72 : 28,703.55 = 16,553.56 : x
  2. Step 2: Convert to fraction form
    20,794.72/28,703.55 = 16,553.56/x
  3. Step 3: Cross multiply
    20,794.72x = 28,703.55 × 16,553.56
  4. Step 4: Simplify right side
    20,794.72x = 475,145,937.14
  5. Step 5: Solve for x
    x = 475,145,937.14/20,794.72
  6. Step 6: Final answer
    x = 22,849.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.