Home / 18,944.38-28,412.27-5,614.62

Finding the Fourth Proportional to 18,944.38, 28,412.27 and 5,614.62

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Solution

The fourth proportional to 18,944.38, 28,412.27 and 5,614.62 is: 8,420.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.38 : 28,412.27 = 5,614.62 : x
  2. Step 2: Convert to fraction form
    18,944.38/28,412.27 = 5,614.62/x
  3. Step 3: Cross multiply
    18,944.38x = 28,412.27 × 5,614.62
  4. Step 4: Simplify right side
    18,944.38x = 159,523,985.82
  5. Step 5: Solve for x
    x = 159,523,985.82/18,944.38
  6. Step 6: Final answer
    x = 8,420.65

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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.