Home / 20,922.46-31,383.66-5,340.08

Finding the Fourth Proportional to 20,922.46, 31,383.66 and 5,340.08

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Solution

The fourth proportional to 20,922.46, 31,383.66 and 5,340.08 is: 8,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.46 : 31,383.66 = 5,340.08 : x
  2. Step 2: Convert to fraction form
    20,922.46/31,383.66 = 5,340.08/x
  3. Step 3: Cross multiply
    20,922.46x = 31,383.66 × 5,340.08
  4. Step 4: Simplify right side
    20,922.46x = 167,591,333.55
  5. Step 5: Solve for x
    x = 167,591,333.55/20,922.46
  6. Step 6: Final answer
    x = 8,010.12

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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.