Home / 30,269.76-45,442.44-20,452.56

Finding the Fourth Proportional to 30,269.76, 45,442.44 and 20,452.56

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Solution

The fourth proportional to 30,269.76, 45,442.44 and 20,452.56 is: 30,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269.76 : 45,442.44 = 20,452.56 : x
  2. Step 2: Convert to fraction form
    30,269.76/45,442.44 = 20,452.56/x
  3. Step 3: Cross multiply
    30,269.76x = 45,442.44 × 20,452.56
  4. Step 4: Simplify right side
    30,269.76x = 929,414,230.65
  5. Step 5: Solve for x
    x = 929,414,230.65/30,269.76
  6. Step 6: Final answer
    x = 30,704.38

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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.