Home / 20,252.73-30,358.25-7,769.43

Finding the Fourth Proportional to 20,252.73, 30,358.25 and 7,769.43

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Solution

The fourth proportional to 20,252.73, 30,358.25 and 7,769.43 is: 11,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.73 : 30,358.25 = 7,769.43 : x
  2. Step 2: Convert to fraction form
    20,252.73/30,358.25 = 7,769.43/x
  3. Step 3: Cross multiply
    20,252.73x = 30,358.25 × 7,769.43
  4. Step 4: Simplify right side
    20,252.73x = 235,866,259.45
  5. Step 5: Solve for x
    x = 235,866,259.45/20,252.73
  6. Step 6: Final answer
    x = 11,646.15

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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.