Home / 20,883.19-31,324.92-5,300.86

Finding the Fourth Proportional to 20,883.19, 31,324.92 and 5,300.86

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Solution

The fourth proportional to 20,883.19, 31,324.92 and 5,300.86 is: 7,951.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.19 : 31,324.92 = 5,300.86 : x
  2. Step 2: Convert to fraction form
    20,883.19/31,324.92 = 5,300.86/x
  3. Step 3: Cross multiply
    20,883.19x = 31,324.92 × 5,300.86
  4. Step 4: Simplify right side
    20,883.19x = 166,049,015.43
  5. Step 5: Solve for x
    x = 166,049,015.43/20,883.19
  6. Step 6: Final answer
    x = 7,951.32

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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.