Home / 39,174.05-54,059.87-21,268.70

Finding the Fourth Proportional to 39,174.05, 54,059.87 and 21,268.70

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Solution

The fourth proportional to 39,174.05, 54,059.87 and 21,268.70 is: 29,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,174.05 : 54,059.87 = 21,268.70 : x
  2. Step 2: Convert to fraction form
    39,174.05/54,059.87 = 21,268.70/x
  3. Step 3: Cross multiply
    39,174.05x = 54,059.87 × 21,268.70
  4. Step 4: Simplify right side
    39,174.05x = 1,149,782,780.43
  5. Step 5: Solve for x
    x = 1,149,782,780.43/39,174.05
  6. Step 6: Final answer
    x = 29,350.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.