Home / 23,183.78-34,760.31-8,390.75

Finding the Fourth Proportional to 23,183.78, 34,760.31 and 8,390.75

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Solution

The fourth proportional to 23,183.78, 34,760.31 and 8,390.75 is: 12,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,183.78 : 34,760.31 = 8,390.75 : x
  2. Step 2: Convert to fraction form
    23,183.78/34,760.31 = 8,390.75/x
  3. Step 3: Cross multiply
    23,183.78x = 34,760.31 × 8,390.75
  4. Step 4: Simplify right side
    23,183.78x = 291,665,071.13
  5. Step 5: Solve for x
    x = 291,665,071.13/23,183.78
  6. Step 6: Final answer
    x = 12,580.57

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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.