Home / 20,674.62-28,532.25-11,721.96

Finding the Fourth Proportional to 20,674.62, 28,532.25 and 11,721.96

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Solution

The fourth proportional to 20,674.62, 28,532.25 and 11,721.96 is: 16,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.62 : 28,532.25 = 11,721.96 : x
  2. Step 2: Convert to fraction form
    20,674.62/28,532.25 = 11,721.96/x
  3. Step 3: Cross multiply
    20,674.62x = 28,532.25 × 11,721.96
  4. Step 4: Simplify right side
    20,674.62x = 334,453,893.21
  5. Step 5: Solve for x
    x = 334,453,893.21/20,674.62
  6. Step 6: Final answer
    x = 16,177.03

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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.