Home / 20,249.34-30,359.43-12,442.02

Finding the Fourth Proportional to 20,249.34, 30,359.43 and 12,442.02

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Solution

The fourth proportional to 20,249.34, 30,359.43 and 12,442.02 is: 18,654.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.34 : 30,359.43 = 12,442.02 : x
  2. Step 2: Convert to fraction form
    20,249.34/30,359.43 = 12,442.02/x
  3. Step 3: Cross multiply
    20,249.34x = 30,359.43 × 12,442.02
  4. Step 4: Simplify right side
    20,249.34x = 377,732,635.25
  5. Step 5: Solve for x
    x = 377,732,635.25/20,249.34
  6. Step 6: Final answer
    x = 18,654.07

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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.