Home / 39,773.96-54,889.38-21,869.60

Finding the Fourth Proportional to 39,773.96, 54,889.38 and 21,869.60

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Solution

The fourth proportional to 39,773.96, 54,889.38 and 21,869.60 is: 30,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,773.96 : 54,889.38 = 21,869.60 : x
  2. Step 2: Convert to fraction form
    39,773.96/54,889.38 = 21,869.60/x
  3. Step 3: Cross multiply
    39,773.96x = 54,889.38 × 21,869.60
  4. Step 4: Simplify right side
    39,773.96x = 1,200,408,784.85
  5. Step 5: Solve for x
    x = 1,200,408,784.85/39,773.96
  6. Step 6: Final answer
    x = 30,180.77

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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.