Home / 19,238.25-28,858.47-5,388.33

Finding the Fourth Proportional to 19,238.25, 28,858.47 and 5,388.33

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Solution

The fourth proportional to 19,238.25, 28,858.47 and 5,388.33 is: 8,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.25 : 28,858.47 = 5,388.33 : x
  2. Step 2: Convert to fraction form
    19,238.25/28,858.47 = 5,388.33/x
  3. Step 3: Cross multiply
    19,238.25x = 28,858.47 × 5,388.33
  4. Step 4: Simplify right side
    19,238.25x = 155,498,959.66
  5. Step 5: Solve for x
    x = 155,498,959.66/19,238.25
  6. Step 6: Final answer
    x = 8,082.80

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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.