Home / 19,531.12-29,238.36-13,297.36

Finding the Fourth Proportional to 19,531.12, 29,238.36 and 13,297.36

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Solution

The fourth proportional to 19,531.12, 29,238.36 and 13,297.36 is: 19,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.12 : 29,238.36 = 13,297.36 : x
  2. Step 2: Convert to fraction form
    19,531.12/29,238.36 = 13,297.36/x
  3. Step 3: Cross multiply
    19,531.12x = 29,238.36 × 13,297.36
  4. Step 4: Simplify right side
    19,531.12x = 388,792,998.73
  5. Step 5: Solve for x
    x = 388,792,998.73/19,531.12
  6. Step 6: Final answer
    x = 19,906.33

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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.