Home / 38,229.03-57,322.47-20,480.49

Finding the Fourth Proportional to 38,229.03, 57,322.47 and 20,480.49

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Solution

The fourth proportional to 38,229.03, 57,322.47 and 20,480.49 is: 30,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,229.03 : 57,322.47 = 20,480.49 : x
  2. Step 2: Convert to fraction form
    38,229.03/57,322.47 = 20,480.49/x
  3. Step 3: Cross multiply
    38,229.03x = 57,322.47 × 20,480.49
  4. Step 4: Simplify right side
    38,229.03x = 1,173,992,273.61
  5. Step 5: Solve for x
    x = 1,173,992,273.61/38,229.03
  6. Step 6: Final answer
    x = 30,709.44

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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.