Home / 20,850.57-31,280.76-6,059.79

Finding the Fourth Proportional to 20,850.57, 31,280.76 and 6,059.79

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Solution

The fourth proportional to 20,850.57, 31,280.76 and 6,059.79 is: 9,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.57 : 31,280.76 = 6,059.79 : x
  2. Step 2: Convert to fraction form
    20,850.57/31,280.76 = 6,059.79/x
  3. Step 3: Cross multiply
    20,850.57x = 31,280.76 × 6,059.79
  4. Step 4: Simplify right side
    20,850.57x = 189,554,836.64
  5. Step 5: Solve for x
    x = 189,554,836.64/20,850.57
  6. Step 6: Final answer
    x = 9,091.11

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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.