Home / 20,243.27-30,362.14-5,453.08

Finding the Fourth Proportional to 20,243.27, 30,362.14 and 5,453.08

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Solution

The fourth proportional to 20,243.27, 30,362.14 and 5,453.08 is: 8,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.27 : 30,362.14 = 5,453.08 : x
  2. Step 2: Convert to fraction form
    20,243.27/30,362.14 = 5,453.08/x
  3. Step 3: Cross multiply
    20,243.27x = 30,362.14 × 5,453.08
  4. Step 4: Simplify right side
    20,243.27x = 165,567,178.39
  5. Step 5: Solve for x
    x = 165,567,178.39/20,243.27
  6. Step 6: Final answer
    x = 8,178.88

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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.