Home / 20,887.17-31,324.61-6,091.44

Finding the Fourth Proportional to 20,887.17, 31,324.61 and 6,091.44

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Solution

The fourth proportional to 20,887.17, 31,324.61 and 6,091.44 is: 9,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.17 : 31,324.61 = 6,091.44 : x
  2. Step 2: Convert to fraction form
    20,887.17/31,324.61 = 6,091.44/x
  3. Step 3: Cross multiply
    20,887.17x = 31,324.61 × 6,091.44
  4. Step 4: Simplify right side
    20,887.17x = 190,811,951.88
  5. Step 5: Solve for x
    x = 190,811,951.88/20,887.17
  6. Step 6: Final answer
    x = 9,135.37

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1.5x scale

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.