Home / 21,436.36-32,163.78-11,573.68

Finding the Fourth Proportional to 21,436.36, 32,163.78 and 11,573.68

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Solution

The fourth proportional to 21,436.36, 32,163.78 and 11,573.68 is: 17,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.36 : 32,163.78 = 11,573.68 : x
  2. Step 2: Convert to fraction form
    21,436.36/32,163.78 = 11,573.68/x
  3. Step 3: Cross multiply
    21,436.36x = 32,163.78 × 11,573.68
  4. Step 4: Simplify right side
    21,436.36x = 372,253,297.31
  5. Step 5: Solve for x
    x = 372,253,297.31/21,436.36
  6. Step 6: Final answer
    x = 17,365.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.