Home / 39,255.52-54,171.60-21,350.08

Finding the Fourth Proportional to 39,255.52, 54,171.60 and 21,350.08

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Solution

The fourth proportional to 39,255.52, 54,171.60 and 21,350.08 is: 29,462.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,255.52 : 54,171.60 = 21,350.08 : x
  2. Step 2: Convert to fraction form
    39,255.52/54,171.60 = 21,350.08/x
  3. Step 3: Cross multiply
    39,255.52x = 54,171.60 × 21,350.08
  4. Step 4: Simplify right side
    39,255.52x = 1,156,567,993.73
  5. Step 5: Solve for x
    x = 1,156,567,993.73/39,255.52
  6. Step 6: Final answer
    x = 29,462.56

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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.