Home / 38,309.76-57,418.11-20,496.60

Finding the Fourth Proportional to 38,309.76, 57,418.11 and 20,496.60

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Solution

The fourth proportional to 38,309.76, 57,418.11 and 20,496.60 is: 30,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,309.76 : 57,418.11 = 20,496.60 : x
  2. Step 2: Convert to fraction form
    38,309.76/57,418.11 = 20,496.60/x
  3. Step 3: Cross multiply
    38,309.76x = 57,418.11 × 20,496.60
  4. Step 4: Simplify right side
    38,309.76x = 1,176,876,033.43
  5. Step 5: Solve for x
    x = 1,176,876,033.43/38,309.76
  6. Step 6: Final answer
    x = 30,720.01

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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.