Home / 30,211.05-41,690.07-16,783.15

Finding the Fourth Proportional to 30,211.05, 41,690.07 and 16,783.15

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Solution

The fourth proportional to 30,211.05, 41,690.07 and 16,783.15 is: 23,160.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.05 : 41,690.07 = 16,783.15 : x
  2. Step 2: Convert to fraction form
    30,211.05/41,690.07 = 16,783.15/x
  3. Step 3: Cross multiply
    30,211.05x = 41,690.07 × 16,783.15
  4. Step 4: Simplify right side
    30,211.05x = 699,690,698.32
  5. Step 5: Solve for x
    x = 699,690,698.32/30,211.05
  6. Step 6: Final answer
    x = 23,160.09

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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.