Home / 39,327.88-54,273.32-21,422.85

Finding the Fourth Proportional to 39,327.88, 54,273.32 and 21,422.85

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Solution

The fourth proportional to 39,327.88, 54,273.32 and 21,422.85 is: 29,563.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.88 : 54,273.32 = 21,422.85 : x
  2. Step 2: Convert to fraction form
    39,327.88/54,273.32 = 21,422.85/x
  3. Step 3: Cross multiply
    39,327.88x = 54,273.32 × 21,422.85
  4. Step 4: Simplify right side
    39,327.88x = 1,162,689,086.25
  5. Step 5: Solve for x
    x = 1,162,689,086.25/39,327.88
  6. Step 6: Final answer
    x = 29,563.99

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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.