Home / 30,208.32-41,685.72-16,778.80

Finding the Fourth Proportional to 30,208.32, 41,685.72 and 16,778.80

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Solution

The fourth proportional to 30,208.32, 41,685.72 and 16,778.80 is: 23,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,208.32 : 41,685.72 = 16,778.80 : x
  2. Step 2: Convert to fraction form
    30,208.32/41,685.72 = 16,778.80/x
  3. Step 3: Cross multiply
    30,208.32x = 41,685.72 × 16,778.80
  4. Step 4: Simplify right side
    30,208.32x = 699,436,358.74
  5. Step 5: Solve for x
    x = 699,436,358.74/30,208.32
  6. Step 6: Final answer
    x = 23,153.77

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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.