Home / 30,205.90-41,684.55-16,778.02

Finding the Fourth Proportional to 30,205.90, 41,684.55 and 16,778.02

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Solution

The fourth proportional to 30,205.90, 41,684.55 and 16,778.02 is: 23,153.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.90 : 41,684.55 = 16,778.02 : x
  2. Step 2: Convert to fraction form
    30,205.90/41,684.55 = 16,778.02/x
  3. Step 3: Cross multiply
    30,205.90x = 41,684.55 × 16,778.02
  4. Step 4: Simplify right side
    30,205.90x = 699,384,213.59
  5. Step 5: Solve for x
    x = 699,384,213.59/30,205.90
  6. Step 6: Final answer
    x = 23,153.89

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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.