Home / 20,884.14-31,330.83-10,359.89

Finding the Fourth Proportional to 20,884.14, 31,330.83 and 10,359.89

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Solution

The fourth proportional to 20,884.14, 31,330.83 and 10,359.89 is: 15,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,884.14 : 31,330.83 = 10,359.89 : x
  2. Step 2: Convert to fraction form
    20,884.14/31,330.83 = 10,359.89/x
  3. Step 3: Cross multiply
    20,884.14x = 31,330.83 × 10,359.89
  4. Step 4: Simplify right side
    20,884.14x = 324,583,820.62
  5. Step 5: Solve for x
    x = 324,583,820.62/20,884.14
  6. Step 6: Final answer
    x = 15,542.12

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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.