Home / 38,629.20-57,900.60-16,438.80

Finding the Fourth Proportional to 38,629.20, 57,900.60 and 16,438.80

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Solution

The fourth proportional to 38,629.20, 57,900.60 and 16,438.80 is: 24,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.20 : 57,900.60 = 16,438.80 : x
  2. Step 2: Convert to fraction form
    38,629.20/57,900.60 = 16,438.80/x
  3. Step 3: Cross multiply
    38,629.20x = 57,900.60 × 16,438.80
  4. Step 4: Simplify right side
    38,629.20x = 951,816,383.28
  5. Step 5: Solve for x
    x = 951,816,383.28/38,629.20
  6. Step 6: Final answer
    x = 24,639.82

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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.