Home / 39,121.58-53,986.82-22,353.50

Finding the Fourth Proportional to 39,121.58, 53,986.82 and 22,353.50

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Solution

The fourth proportional to 39,121.58, 53,986.82 and 22,353.50 is: 30,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.58 : 53,986.82 = 22,353.50 : x
  2. Step 2: Convert to fraction form
    39,121.58/53,986.82 = 22,353.50/x
  3. Step 3: Cross multiply
    39,121.58x = 53,986.82 × 22,353.50
  4. Step 4: Simplify right side
    39,121.58x = 1,206,794,380.87
  5. Step 5: Solve for x
    x = 1,206,794,380.87/39,121.58
  6. Step 6: Final answer
    x = 30,847.28

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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.