Home / 38,142.08-57,229.32-20,591.48

Finding the Fourth Proportional to 38,142.08, 57,229.32 and 20,591.48

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Solution

The fourth proportional to 38,142.08, 57,229.32 and 20,591.48 is: 30,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.08 : 57,229.32 = 20,591.48 : x
  2. Step 2: Convert to fraction form
    38,142.08/57,229.32 = 20,591.48/x
  3. Step 3: Cross multiply
    38,142.08x = 57,229.32 × 20,591.48
  4. Step 4: Simplify right side
    38,142.08x = 1,178,436,398.19
  5. Step 5: Solve for x
    x = 1,178,436,398.19/38,142.08
  6. Step 6: Final answer
    x = 30,895.97

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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.