Home / 19,192.86-28,786.14-13,629.36

Finding the Fourth Proportional to 19,192.86, 28,786.14 and 13,629.36

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Solution

The fourth proportional to 19,192.86, 28,786.14 and 13,629.36 is: 20,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,192.86 : 28,786.14 = 13,629.36 : x
  2. Step 2: Convert to fraction form
    19,192.86/28,786.14 = 13,629.36/x
  3. Step 3: Cross multiply
    19,192.86x = 28,786.14 × 13,629.36
  4. Step 4: Simplify right side
    19,192.86x = 392,336,665.07
  5. Step 5: Solve for x
    x = 392,336,665.07/19,192.86
  6. Step 6: Final answer
    x = 20,441.80

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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.