Home / 38,441.70-57,651.75-18,720.90

Finding the Fourth Proportional to 38,441.70, 57,651.75 and 18,720.90

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Solution

The fourth proportional to 38,441.70, 57,651.75 and 18,720.90 is: 28,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,441.70 : 57,651.75 = 18,720.90 : x
  2. Step 2: Convert to fraction form
    38,441.70/57,651.75 = 18,720.90/x
  3. Step 3: Cross multiply
    38,441.70x = 57,651.75 × 18,720.90
  4. Step 4: Simplify right side
    38,441.70x = 1,079,292,646.58
  5. Step 5: Solve for x
    x = 1,079,292,646.58/38,441.70
  6. Step 6: Final answer
    x = 28,076.09

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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.