Home / 19,847.20-29,843.70-16,639.60

Finding the Fourth Proportional to 19,847.20, 29,843.70 and 16,639.60

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Solution

The fourth proportional to 19,847.20, 29,843.70 and 16,639.60 is: 25,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,847.20 : 29,843.70 = 16,639.60 : x
  2. Step 2: Convert to fraction form
    19,847.20/29,843.70 = 16,639.60/x
  3. Step 3: Cross multiply
    19,847.20x = 29,843.70 × 16,639.60
  4. Step 4: Simplify right side
    19,847.20x = 496,587,230.52
  5. Step 5: Solve for x
    x = 496,587,230.52/19,847.20
  6. Step 6: Final answer
    x = 25,020.52

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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.