Home / 36,644.83-54,975.31-20,857.29

Finding the Fourth Proportional to 36,644.83, 54,975.31 and 20,857.29

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Solution

The fourth proportional to 36,644.83, 54,975.31 and 20,857.29 is: 31,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,644.83 : 54,975.31 = 20,857.29 : x
  2. Step 2: Convert to fraction form
    36,644.83/54,975.31 = 20,857.29/x
  3. Step 3: Cross multiply
    36,644.83x = 54,975.31 × 20,857.29
  4. Step 4: Simplify right side
    36,644.83x = 1,146,635,879.83
  5. Step 5: Solve for x
    x = 1,146,635,879.83/36,644.83
  6. Step 6: Final answer
    x = 31,290.52

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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.