Home / 21,179.97-31,769.96-7,325.73

Finding the Fourth Proportional to 21,179.97, 31,769.96 and 7,325.73

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Solution

The fourth proportional to 21,179.97, 31,769.96 and 7,325.73 is: 10,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.97 : 31,769.96 = 7,325.73 : x
  2. Step 2: Convert to fraction form
    21,179.97/31,769.96 = 7,325.73/x
  3. Step 3: Cross multiply
    21,179.97x = 31,769.96 × 7,325.73
  4. Step 4: Simplify right side
    21,179.97x = 232,738,112.44
  5. Step 5: Solve for x
    x = 232,738,112.44/21,179.97
  6. Step 6: Final answer
    x = 10,988.60

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1.5x scale

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.