Home / 28,371.25-39,153.54-15,796

Finding the Fourth Proportional to 28,371.25, 39,153.54 and 15,796

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Solution

The fourth proportional to 28,371.25, 39,153.54 and 15,796 is: 21,799.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.25 : 39,153.54 = 15,796 : x
  2. Step 2: Convert to fraction form
    28,371.25/39,153.54 = 15,796/x
  3. Step 3: Cross multiply
    28,371.25x = 39,153.54 × 15,796
  4. Step 4: Simplify right side
    28,371.25x = 618,469,317.84
  5. Step 5: Solve for x
    x = 618,469,317.84/28,371.25
  6. Step 6: Final answer
    x = 21,799.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.