Home / 39,991.80-55,185.87-22,086.63

Finding the Fourth Proportional to 39,991.80, 55,185.87 and 22,086.63

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Solution

The fourth proportional to 39,991.80, 55,185.87 and 22,086.63 is: 30,478.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,991.80 : 55,185.87 = 22,086.63 : x
  2. Step 2: Convert to fraction form
    39,991.80/55,185.87 = 22,086.63/x
  3. Step 3: Cross multiply
    39,991.80x = 55,185.87 × 22,086.63
  4. Step 4: Simplify right side
    39,991.80x = 1,218,869,891.92
  5. Step 5: Solve for x
    x = 1,218,869,891.92/39,991.80
  6. Step 6: Final answer
    x = 30,478.00

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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.