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Finding the Fourth Proportional to 36,804.20, 50,791.35 and 20,890.13

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Solution

The fourth proportional to 36,804.20, 50,791.35 and 20,890.13 is: 28,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,804.20 : 50,791.35 = 20,890.13 : x
  2. Step 2: Convert to fraction form
    36,804.20/50,791.35 = 20,890.13/x
  3. Step 3: Cross multiply
    36,804.20x = 50,791.35 × 20,890.13
  4. Step 4: Simplify right side
    36,804.20x = 1,061,037,777.40
  5. Step 5: Solve for x
    x = 1,061,037,777.40/36,804.20
  6. Step 6: Final answer
    x = 28,829.26

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Half scale
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Double scale
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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.