Home / 28,183.14-38,893.98-15,607.86

Finding the Fourth Proportional to 28,183.14, 38,893.98 and 15,607.86

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Solution

The fourth proportional to 28,183.14, 38,893.98 and 15,607.86 is: 21,539.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,183.14 : 38,893.98 = 15,607.86 : x
  2. Step 2: Convert to fraction form
    28,183.14/38,893.98 = 15,607.86/x
  3. Step 3: Cross multiply
    28,183.14x = 38,893.98 × 15,607.86
  4. Step 4: Simplify right side
    28,183.14x = 607,051,794.68
  5. Step 5: Solve for x
    x = 607,051,794.68/28,183.14
  6. Step 6: Final answer
    x = 21,539.54

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1.5x scale

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.