Home / 39,974.36-55,163.73-21,824.46

Finding the Fourth Proportional to 39,974.36, 55,163.73 and 21,824.46

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Solution

The fourth proportional to 39,974.36, 55,163.73 and 21,824.46 is: 30,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,974.36 : 55,163.73 = 21,824.46 : x
  2. Step 2: Convert to fraction form
    39,974.36/55,163.73 = 21,824.46/x
  3. Step 3: Cross multiply
    39,974.36x = 55,163.73 × 21,824.46
  4. Step 4: Simplify right side
    39,974.36x = 1,203,918,618.84
  5. Step 5: Solve for x
    x = 1,203,918,618.84/39,974.36
  6. Step 6: Final answer
    x = 30,117.27

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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.