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Finding the Fourth Proportional to 36,783.77, 50,760.09 and 20,867.90

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Solution

The fourth proportional to 36,783.77, 50,760.09 and 20,867.90 is: 28,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,783.77 : 50,760.09 = 20,867.90 : x
  2. Step 2: Convert to fraction form
    36,783.77/50,760.09 = 20,867.90/x
  3. Step 3: Cross multiply
    36,783.77x = 50,760.09 × 20,867.90
  4. Step 4: Simplify right side
    36,783.77x = 1,059,256,228.31
  5. Step 5: Solve for x
    x = 1,059,256,228.31/36,783.77
  6. Step 6: Final answer
    x = 28,796.84

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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.