Home / 20,332.44-28,059.27-11,379.87

Finding the Fourth Proportional to 20,332.44, 28,059.27 and 11,379.87

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Solution

The fourth proportional to 20,332.44, 28,059.27 and 11,379.87 is: 15,704.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.44 : 28,059.27 = 11,379.87 : x
  2. Step 2: Convert to fraction form
    20,332.44/28,059.27 = 11,379.87/x
  3. Step 3: Cross multiply
    20,332.44x = 28,059.27 × 11,379.87
  4. Step 4: Simplify right side
    20,332.44x = 319,310,844.89
  5. Step 5: Solve for x
    x = 319,310,844.89/20,332.44
  6. Step 6: Final answer
    x = 15,704.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.