Home / 19,249.28-28,875-5,399.36

Finding the Fourth Proportional to 19,249.28, 28,875 and 5,399.36

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Solution

The fourth proportional to 19,249.28, 28,875 and 5,399.36 is: 8,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,249.28 : 28,875 = 5,399.36 : x
  2. Step 2: Convert to fraction form
    19,249.28/28,875 = 5,399.36/x
  3. Step 3: Cross multiply
    19,249.28x = 28,875 × 5,399.36
  4. Step 4: Simplify right side
    19,249.28x = 155,906,520
  5. Step 5: Solve for x
    x = 155,906,520/19,249.28
  6. Step 6: Final answer
    x = 8,099.34

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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.