Home / 38,321.16-57,362.94-20,747.40

Finding the Fourth Proportional to 38,321.16, 57,362.94 and 20,747.40

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Solution

The fourth proportional to 38,321.16, 57,362.94 and 20,747.40 is: 31,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,321.16 : 57,362.94 = 20,747.40 : x
  2. Step 2: Convert to fraction form
    38,321.16/57,362.94 = 20,747.40/x
  3. Step 3: Cross multiply
    38,321.16x = 57,362.94 × 20,747.40
  4. Step 4: Simplify right side
    38,321.16x = 1,190,131,861.36
  5. Step 5: Solve for x
    x = 1,190,131,861.36/38,321.16
  6. Step 6: Final answer
    x = 31,056.78

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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.