Home / 39,896.66-55,056.70-21,993.33

Finding the Fourth Proportional to 39,896.66, 55,056.70 and 21,993.33

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Solution

The fourth proportional to 39,896.66, 55,056.70 and 21,993.33 is: 30,350.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,896.66 : 55,056.70 = 21,993.33 : x
  2. Step 2: Convert to fraction form
    39,896.66/55,056.70 = 21,993.33/x
  3. Step 3: Cross multiply
    39,896.66x = 55,056.70 × 21,993.33
  4. Step 4: Simplify right side
    39,896.66x = 1,210,880,226.79
  5. Step 5: Solve for x
    x = 1,210,880,226.79/39,896.66
  6. Step 6: Final answer
    x = 30,350.42

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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.