Home / 30,208.20-41,685.54-16,778.67

Finding the Fourth Proportional to 30,208.20, 41,685.54 and 16,778.67

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Solution

The fourth proportional to 30,208.20, 41,685.54 and 16,778.67 is: 23,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.20 : 41,685.54 = 16,778.67 : x
  2. Step 2: Convert to fraction form
    30,208.20/41,685.54 = 16,778.67/x
  3. Step 3: Cross multiply
    30,208.20x = 41,685.54 × 16,778.67
  4. Step 4: Simplify right side
    30,208.20x = 699,427,919.43
  5. Step 5: Solve for x
    x = 699,427,919.43/30,208.20
  6. Step 6: Final answer
    x = 23,153.58

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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.