Home / 18,932.10-28,354.38-18,276

Finding the Fourth Proportional to 18,932.10, 28,354.38 and 18,276

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Solution

The fourth proportional to 18,932.10, 28,354.38 and 18,276 is: 27,371.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.10 : 28,354.38 = 18,276 : x
  2. Step 2: Convert to fraction form
    18,932.10/28,354.38 = 18,276/x
  3. Step 3: Cross multiply
    18,932.10x = 28,354.38 × 18,276
  4. Step 4: Simplify right side
    18,932.10x = 518,204,648.88
  5. Step 5: Solve for x
    x = 518,204,648.88/18,932.10
  6. Step 6: Final answer
    x = 27,371.75

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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.