Home / 39,940.81-55,121.01-22,950.56

Finding the Fourth Proportional to 39,940.81, 55,121.01 and 22,950.56

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Solution

The fourth proportional to 39,940.81, 55,121.01 and 22,950.56 is: 31,673.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940.81 : 55,121.01 = 22,950.56 : x
  2. Step 2: Convert to fraction form
    39,940.81/55,121.01 = 22,950.56/x
  3. Step 3: Cross multiply
    39,940.81x = 55,121.01 × 22,950.56
  4. Step 4: Simplify right side
    39,940.81x = 1,265,058,047.27
  5. Step 5: Solve for x
    x = 1,265,058,047.27/39,940.81
  6. Step 6: Final answer
    x = 31,673.32

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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.