Home / 38,003.54-57,021.70-20,469.86

Finding the Fourth Proportional to 38,003.54, 57,021.70 and 20,469.86

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Solution

The fourth proportional to 38,003.54, 57,021.70 and 20,469.86 is: 30,713.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,003.54 : 57,021.70 = 20,469.86 : x
  2. Step 2: Convert to fraction form
    38,003.54/57,021.70 = 20,469.86/x
  3. Step 3: Cross multiply
    38,003.54x = 57,021.70 × 20,469.86
  4. Step 4: Simplify right side
    38,003.54x = 1,167,226,215.96
  5. Step 5: Solve for x
    x = 1,167,226,215.96/38,003.54
  6. Step 6: Final answer
    x = 30,713.62

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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.