Home / 23,180.78-34,776.12-9,329.78

Finding the Fourth Proportional to 23,180.78, 34,776.12 and 9,329.78

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Solution

The fourth proportional to 23,180.78, 34,776.12 and 9,329.78 is: 13,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.78 : 34,776.12 = 9,329.78 : x
  2. Step 2: Convert to fraction form
    23,180.78/34,776.12 = 9,329.78/x
  3. Step 3: Cross multiply
    23,180.78x = 34,776.12 × 9,329.78
  4. Step 4: Simplify right side
    23,180.78x = 324,453,548.85
  5. Step 5: Solve for x
    x = 324,453,548.85/23,180.78
  6. Step 6: Final answer
    x = 13,996.66

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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.