Home / 20,757.02-31,145.96-8,301.37

Finding the Fourth Proportional to 20,757.02, 31,145.96 and 8,301.37

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Solution

The fourth proportional to 20,757.02, 31,145.96 and 8,301.37 is: 12,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.02 : 31,145.96 = 8,301.37 : x
  2. Step 2: Convert to fraction form
    20,757.02/31,145.96 = 8,301.37/x
  3. Step 3: Cross multiply
    20,757.02x = 31,145.96 × 8,301.37
  4. Step 4: Simplify right side
    20,757.02x = 258,554,212.28
  5. Step 5: Solve for x
    x = 258,554,212.28/20,757.02
  6. Step 6: Final answer
    x = 12,456.23

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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.