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Finding the Fourth Proportional to 36,600, 50,502.26 and 21,289.94

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Solution

The fourth proportional to 36,600, 50,502.26 and 21,289.94 is: 29,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,600 : 50,502.26 = 21,289.94 : x
  2. Step 2: Convert to fraction form
    36,600/50,502.26 = 21,289.94/x
  3. Step 3: Cross multiply
    36,600x = 50,502.26 × 21,289.94
  4. Step 4: Simplify right side
    36,600x = 1,075,190,085.26
  5. Step 5: Solve for x
    x = 1,075,190,085.26/36,600
  6. Step 6: Final answer
    x = 29,376.78

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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.