Home / 20,147.44-30,218.80-5,357.52

Finding the Fourth Proportional to 20,147.44, 30,218.80 and 5,357.52

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Solution

The fourth proportional to 20,147.44, 30,218.80 and 5,357.52 is: 8,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.44 : 30,218.80 = 5,357.52 : x
  2. Step 2: Convert to fraction form
    20,147.44/30,218.80 = 5,357.52/x
  3. Step 3: Cross multiply
    20,147.44x = 30,218.80 × 5,357.52
  4. Step 4: Simplify right side
    20,147.44x = 161,897,825.38
  5. Step 5: Solve for x
    x = 161,897,825.38/20,147.44
  6. Step 6: Final answer
    x = 8,035.65

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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.