Home / 39,992.84-55,189.05-22,086.57

Finding the Fourth Proportional to 39,992.84, 55,189.05 and 22,086.57

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Solution

The fourth proportional to 39,992.84, 55,189.05 and 22,086.57 is: 30,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992.84 : 55,189.05 = 22,086.57 : x
  2. Step 2: Convert to fraction form
    39,992.84/55,189.05 = 22,086.57/x
  3. Step 3: Cross multiply
    39,992.84x = 55,189.05 × 22,086.57
  4. Step 4: Simplify right side
    39,992.84x = 1,218,936,940.19
  5. Step 5: Solve for x
    x = 1,218,936,940.19/39,992.84
  6. Step 6: Final answer
    x = 30,478.88

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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.