Home / 39,773.90-54,887.22-21,868.73

Finding the Fourth Proportional to 39,773.90, 54,887.22 and 21,868.73

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Solution

The fourth proportional to 39,773.90, 54,887.22 and 21,868.73 is: 30,178.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,773.90 : 54,887.22 = 21,868.73 : x
  2. Step 2: Convert to fraction form
    39,773.90/54,887.22 = 21,868.73/x
  3. Step 3: Cross multiply
    39,773.90x = 54,887.22 × 21,868.73
  4. Step 4: Simplify right side
    39,773.90x = 1,200,313,794.63
  5. Step 5: Solve for x
    x = 1,200,313,794.63/39,773.90
  6. Step 6: Final answer
    x = 30,178.43

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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.