Home / 20,269.46-30,383.53-11,485.82

Finding the Fourth Proportional to 20,269.46, 30,383.53 and 11,485.82

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Solution

The fourth proportional to 20,269.46, 30,383.53 and 11,485.82 is: 17,217.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.46 : 30,383.53 = 11,485.82 : x
  2. Step 2: Convert to fraction form
    20,269.46/30,383.53 = 11,485.82/x
  3. Step 3: Cross multiply
    20,269.46x = 30,383.53 × 11,485.82
  4. Step 4: Simplify right side
    20,269.46x = 348,979,756.54
  5. Step 5: Solve for x
    x = 348,979,756.54/20,269.46
  6. Step 6: Final answer
    x = 17,217.02

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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.