Home / 18,420.92-27,631.33-5,273.27

Finding the Fourth Proportional to 18,420.92, 27,631.33 and 5,273.27

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Solution

The fourth proportional to 18,420.92, 27,631.33 and 5,273.27 is: 7,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.92 : 27,631.33 = 5,273.27 : x
  2. Step 2: Convert to fraction form
    18,420.92/27,631.33 = 5,273.27/x
  3. Step 3: Cross multiply
    18,420.92x = 27,631.33 × 5,273.27
  4. Step 4: Simplify right side
    18,420.92x = 145,707,463.55
  5. Step 5: Solve for x
    x = 145,707,463.55/18,420.92
  6. Step 6: Final answer
    x = 7,909.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.