Home / 21,127.50-29,163.29-13,067.33

Finding the Fourth Proportional to 21,127.50, 29,163.29 and 13,067.33

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Solution

The fourth proportional to 21,127.50, 29,163.29 and 13,067.33 is: 18,037.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,127.50 : 29,163.29 = 13,067.33 : x
  2. Step 2: Convert to fraction form
    21,127.50/29,163.29 = 13,067.33/x
  3. Step 3: Cross multiply
    21,127.50x = 29,163.29 × 13,067.33
  4. Step 4: Simplify right side
    21,127.50x = 381,086,334.32
  5. Step 5: Solve for x
    x = 381,086,334.32/21,127.50
  6. Step 6: Final answer
    x = 18,037.46

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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.