Home / 38,660.20-57,830.10-36,298.60

Finding the Fourth Proportional to 38,660.20, 57,830.10 and 36,298.60

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Solution

The fourth proportional to 38,660.20, 57,830.10 and 36,298.60 is: 54,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.20 : 57,830.10 = 36,298.60 : x
  2. Step 2: Convert to fraction form
    38,660.20/57,830.10 = 36,298.60/x
  3. Step 3: Cross multiply
    38,660.20x = 57,830.10 × 36,298.60
  4. Step 4: Simplify right side
    38,660.20x = 2,099,151,667.86
  5. Step 5: Solve for x
    x = 2,099,151,667.86/38,660.20
  6. Step 6: Final answer
    x = 54,297.49

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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.