Home / 38,231.43-52,757.49-21,236.75

Finding the Fourth Proportional to 38,231.43, 52,757.49 and 21,236.75

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Solution

The fourth proportional to 38,231.43, 52,757.49 and 21,236.75 is: 29,305.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,231.43 : 52,757.49 = 21,236.75 : x
  2. Step 2: Convert to fraction form
    38,231.43/52,757.49 = 21,236.75/x
  3. Step 3: Cross multiply
    38,231.43x = 52,757.49 × 21,236.75
  4. Step 4: Simplify right side
    38,231.43x = 1,120,397,639.45
  5. Step 5: Solve for x
    x = 1,120,397,639.45/38,231.43
  6. Step 6: Final answer
    x = 29,305.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.