Home / 39,909.89-55,076.01-22,005.53

Finding the Fourth Proportional to 39,909.89, 55,076.01 and 22,005.53

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Solution

The fourth proportional to 39,909.89, 55,076.01 and 22,005.53 is: 30,367.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.89 : 55,076.01 = 22,005.53 : x
  2. Step 2: Convert to fraction form
    39,909.89/55,076.01 = 22,005.53/x
  3. Step 3: Cross multiply
    39,909.89x = 55,076.01 × 22,005.53
  4. Step 4: Simplify right side
    39,909.89x = 1,211,976,790.34
  5. Step 5: Solve for x
    x = 1,211,976,790.34/39,909.89
  6. Step 6: Final answer
    x = 30,367.83

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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.