Home / 20,726.20-31,090.41-5,937.28

Finding the Fourth Proportional to 20,726.20, 31,090.41 and 5,937.28

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Solution

The fourth proportional to 20,726.20, 31,090.41 and 5,937.28 is: 8,906.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726.20 : 31,090.41 = 5,937.28 : x
  2. Step 2: Convert to fraction form
    20,726.20/31,090.41 = 5,937.28/x
  3. Step 3: Cross multiply
    20,726.20x = 31,090.41 × 5,937.28
  4. Step 4: Simplify right side
    20,726.20x = 184,592,469.48
  5. Step 5: Solve for x
    x = 184,592,469.48/20,726.20
  6. Step 6: Final answer
    x = 8,906.24

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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.