Home / 20,728.83-31,094.31-5,939.92

Finding the Fourth Proportional to 20,728.83, 31,094.31 and 5,939.92

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Solution

The fourth proportional to 20,728.83, 31,094.31 and 5,939.92 is: 8,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728.83 : 31,094.31 = 5,939.92 : x
  2. Step 2: Convert to fraction form
    20,728.83/31,094.31 = 5,939.92/x
  3. Step 3: Cross multiply
    20,728.83x = 31,094.31 × 5,939.92
  4. Step 4: Simplify right side
    20,728.83x = 184,697,528.68
  5. Step 5: Solve for x
    x = 184,697,528.68/20,728.83
  6. Step 6: Final answer
    x = 8,910.18

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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.