Home / 28,247.52-38,982.24-15,672

Finding the Fourth Proportional to 28,247.52, 38,982.24 and 15,672

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Solution

The fourth proportional to 28,247.52, 38,982.24 and 15,672 is: 21,627.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.52 : 38,982.24 = 15,672 : x
  2. Step 2: Convert to fraction form
    28,247.52/38,982.24 = 15,672/x
  3. Step 3: Cross multiply
    28,247.52x = 38,982.24 × 15,672
  4. Step 4: Simplify right side
    28,247.52x = 610,929,665.28
  5. Step 5: Solve for x
    x = 610,929,665.28/28,247.52
  6. Step 6: Final answer
    x = 21,627.73

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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.