Home / 28,127.98-42,183.46-9,403.21

Finding the Fourth Proportional to 28,127.98, 42,183.46 and 9,403.21

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Solution

The fourth proportional to 28,127.98, 42,183.46 and 9,403.21 is: 14,101.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.98 : 42,183.46 = 9,403.21 : x
  2. Step 2: Convert to fraction form
    28,127.98/42,183.46 = 9,403.21/x
  3. Step 3: Cross multiply
    28,127.98x = 42,183.46 × 9,403.21
  4. Step 4: Simplify right side
    28,127.98x = 396,659,932.91
  5. Step 5: Solve for x
    x = 396,659,932.91/28,127.98
  6. Step 6: Final answer
    x = 14,101.97

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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.