Home / 39,812.27-54,941.13-21,906.81

Finding the Fourth Proportional to 39,812.27, 54,941.13 and 21,906.81

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Solution

The fourth proportional to 39,812.27, 54,941.13 and 21,906.81 is: 30,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.27 : 54,941.13 = 21,906.81 : x
  2. Step 2: Convert to fraction form
    39,812.27/54,941.13 = 21,906.81/x
  3. Step 3: Cross multiply
    39,812.27x = 54,941.13 × 21,906.81
  4. Step 4: Simplify right side
    39,812.27x = 1,203,584,896.10
  5. Step 5: Solve for x
    x = 1,203,584,896.10/39,812.27
  6. Step 6: Final answer
    x = 30,231.51

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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.