Home / 15,961.28-23,934.96-5,428.44

Finding the Fourth Proportional to 15,961.28, 23,934.96 and 5,428.44

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Solution

The fourth proportional to 15,961.28, 23,934.96 and 5,428.44 is: 8,140.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,961.28 : 23,934.96 = 5,428.44 : x
  2. Step 2: Convert to fraction form
    15,961.28/23,934.96 = 5,428.44/x
  3. Step 3: Cross multiply
    15,961.28x = 23,934.96 × 5,428.44
  4. Step 4: Simplify right side
    15,961.28x = 129,929,494.26
  5. Step 5: Solve for x
    x = 129,929,494.26/15,961.28
  6. Step 6: Final answer
    x = 8,140.30

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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.