Home / 28,277.97-42,431.54-11,650.29

Finding the Fourth Proportional to 28,277.97, 42,431.54 and 11,650.29

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Solution

The fourth proportional to 28,277.97, 42,431.54 and 11,650.29 is: 17,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,277.97 : 42,431.54 = 11,650.29 : x
  2. Step 2: Convert to fraction form
    28,277.97/42,431.54 = 11,650.29/x
  3. Step 3: Cross multiply
    28,277.97x = 42,431.54 × 11,650.29
  4. Step 4: Simplify right side
    28,277.97x = 494,339,746.15
  5. Step 5: Solve for x
    x = 494,339,746.15/28,277.97
  6. Step 6: Final answer
    x = 17,481.44

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1.5x scale

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.