Home / 39,990.65-55,187.51-22,086.09

Finding the Fourth Proportional to 39,990.65, 55,187.51 and 22,086.09

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Solution

The fourth proportional to 39,990.65, 55,187.51 and 22,086.09 is: 30,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,990.65 : 55,187.51 = 22,086.09 : x
  2. Step 2: Convert to fraction form
    39,990.65/55,187.51 = 22,086.09/x
  3. Step 3: Cross multiply
    39,990.65x = 55,187.51 × 22,086.09
  4. Step 4: Simplify right side
    39,990.65x = 1,218,876,202.31
  5. Step 5: Solve for x
    x = 1,218,876,202.31/39,990.65
  6. Step 6: Final answer
    x = 30,479.03

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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.