Home / 19,450.16-29,131.32-13,632.68

Finding the Fourth Proportional to 19,450.16, 29,131.32 and 13,632.68

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Solution

The fourth proportional to 19,450.16, 29,131.32 and 13,632.68 is: 20,418.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,450.16 : 29,131.32 = 13,632.68 : x
  2. Step 2: Convert to fraction form
    19,450.16/29,131.32 = 13,632.68/x
  3. Step 3: Cross multiply
    19,450.16x = 29,131.32 × 13,632.68
  4. Step 4: Simplify right side
    19,450.16x = 397,137,963.54
  5. Step 5: Solve for x
    x = 397,137,963.54/19,450.16
  6. Step 6: Final answer
    x = 20,418.24

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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.