Home / 39,909.62-55,074.39-22,004.30

Finding the Fourth Proportional to 39,909.62, 55,074.39 and 22,004.30

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Solution

The fourth proportional to 39,909.62, 55,074.39 and 22,004.30 is: 30,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.62 : 55,074.39 = 22,004.30 : x
  2. Step 2: Convert to fraction form
    39,909.62/55,074.39 = 22,004.30/x
  3. Step 3: Cross multiply
    39,909.62x = 55,074.39 × 22,004.30
  4. Step 4: Simplify right side
    39,909.62x = 1,211,873,399.88
  5. Step 5: Solve for x
    x = 1,211,873,399.88/39,909.62
  6. Step 6: Final answer
    x = 30,365.45

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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.