Home / 22,352.85-30,845.00-12,790.80

Finding the Fourth Proportional to 22,352.85, 30,845.00 and 12,790.80

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Solution

The fourth proportional to 22,352.85, 30,845.00 and 12,790.80 is: 17,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,352.85 : 30,845.00 = 12,790.80 : x
  2. Step 2: Convert to fraction form
    22,352.85/30,845.00 = 12,790.80/x
  3. Step 3: Cross multiply
    22,352.85x = 30,845.00 × 12,790.80
  4. Step 4: Simplify right side
    22,352.85x = 394,532,257.98
  5. Step 5: Solve for x
    x = 394,532,257.98/22,352.85
  6. Step 6: Final answer
    x = 17,650.20

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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.