Home / 20,850.50-31,279.19-6,057.47

Finding the Fourth Proportional to 20,850.50, 31,279.19 and 6,057.47

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Solution

The fourth proportional to 20,850.50, 31,279.19 and 6,057.47 is: 9,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.50 : 31,279.19 = 6,057.47 : x
  2. Step 2: Convert to fraction form
    20,850.50/31,279.19 = 6,057.47/x
  3. Step 3: Cross multiply
    20,850.50x = 31,279.19 × 6,057.47
  4. Step 4: Simplify right side
    20,850.50x = 189,472,568.37
  5. Step 5: Solve for x
    x = 189,472,568.37/20,850.50
  6. Step 6: Final answer
    x = 9,087.20

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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.