Home / 36,912.80-50,935.10-20,778.14

Finding the Fourth Proportional to 36,912.80, 50,935.10 and 20,778.14

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Solution

The fourth proportional to 36,912.80, 50,935.10 and 20,778.14 is: 28,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.80 : 50,935.10 = 20,778.14 : x
  2. Step 2: Convert to fraction form
    36,912.80/50,935.10 = 20,778.14/x
  3. Step 3: Cross multiply
    36,912.80x = 50,935.10 × 20,778.14
  4. Step 4: Simplify right side
    36,912.80x = 1,058,336,662.16
  5. Step 5: Solve for x
    x = 1,058,336,662.16/36,912.80
  6. Step 6: Final answer
    x = 28,671.26

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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.