Home / 20,662.26-31,002.59-11,777.27

Finding the Fourth Proportional to 20,662.26, 31,002.59 and 11,777.27

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Solution

The fourth proportional to 20,662.26, 31,002.59 and 11,777.27 is: 17,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.26 : 31,002.59 = 11,777.27 : x
  2. Step 2: Convert to fraction form
    20,662.26/31,002.59 = 11,777.27/x
  3. Step 3: Cross multiply
    20,662.26x = 31,002.59 × 11,777.27
  4. Step 4: Simplify right side
    20,662.26x = 365,125,891.75
  5. Step 5: Solve for x
    x = 365,125,891.75/20,662.26
  6. Step 6: Final answer
    x = 17,671.15

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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.