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Finding the Fourth Proportional to 36,857.31, 50,863.11 and 20,941.80

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Solution

The fourth proportional to 36,857.31, 50,863.11 and 20,941.80 is: 28,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,857.31 : 50,863.11 = 20,941.80 : x
  2. Step 2: Convert to fraction form
    36,857.31/50,863.11 = 20,941.80/x
  3. Step 3: Cross multiply
    36,857.31x = 50,863.11 × 20,941.80
  4. Step 4: Simplify right side
    36,857.31x = 1,065,165,077.00
  5. Step 5: Solve for x
    x = 1,065,165,077.00/36,857.31
  6. Step 6: Final answer
    x = 28,899.70

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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.