Home / 20,945.66-31,422.89-6,153.33

Finding the Fourth Proportional to 20,945.66, 31,422.89 and 6,153.33

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Solution

The fourth proportional to 20,945.66, 31,422.89 and 6,153.33 is: 9,231.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,945.66 : 31,422.89 = 6,153.33 : x
  2. Step 2: Convert to fraction form
    20,945.66/31,422.89 = 6,153.33/x
  3. Step 3: Cross multiply
    20,945.66x = 31,422.89 × 6,153.33
  4. Step 4: Simplify right side
    20,945.66x = 193,355,380.96
  5. Step 5: Solve for x
    x = 193,355,380.96/20,945.66
  6. Step 6: Final answer
    x = 9,231.29

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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.