Home / 31,982.14-47,972.87-10,921.94

Finding the Fourth Proportional to 31,982.14, 47,972.87 and 10,921.94

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Solution

The fourth proportional to 31,982.14, 47,972.87 and 10,921.94 is: 16,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.14 : 47,972.87 = 10,921.94 : x
  2. Step 2: Convert to fraction form
    31,982.14/47,972.87 = 10,921.94/x
  3. Step 3: Cross multiply
    31,982.14x = 47,972.87 × 10,921.94
  4. Step 4: Simplify right side
    31,982.14x = 523,956,513.29
  5. Step 5: Solve for x
    x = 523,956,513.29/31,982.14
  6. Step 6: Final answer
    x = 16,382.79

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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.