Home / 39,909.87-55,076.00-22,005.52

Finding the Fourth Proportional to 39,909.87, 55,076.00 and 22,005.52

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Solution

The fourth proportional to 39,909.87, 55,076.00 and 22,005.52 is: 30,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.87 : 55,076.00 = 22,005.52 : x
  2. Step 2: Convert to fraction form
    39,909.87/55,076.00 = 22,005.52/x
  3. Step 3: Cross multiply
    39,909.87x = 55,076.00 × 22,005.52
  4. Step 4: Simplify right side
    39,909.87x = 1,211,975,771.80
  5. Step 5: Solve for x
    x = 1,211,975,771.80/39,909.87
  6. Step 6: Final answer
    x = 30,367.82

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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.