Home / 20,697.91-31,047.14-5,906.82

Finding the Fourth Proportional to 20,697.91, 31,047.14 and 5,906.82

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Solution

The fourth proportional to 20,697.91, 31,047.14 and 5,906.82 is: 8,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.91 : 31,047.14 = 5,906.82 : x
  2. Step 2: Convert to fraction form
    20,697.91/31,047.14 = 5,906.82/x
  3. Step 3: Cross multiply
    20,697.91x = 31,047.14 × 5,906.82
  4. Step 4: Simplify right side
    20,697.91x = 183,389,712.26
  5. Step 5: Solve for x
    x = 183,389,712.26/20,697.91
  6. Step 6: Final answer
    x = 8,860.30

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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.