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Finding the Fourth Proportional to 36,046.60, 49,720.98 and 21,699.88

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Solution

The fourth proportional to 36,046.60, 49,720.98 and 21,699.88 is: 29,931.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,046.60 : 49,720.98 = 21,699.88 : x
  2. Step 2: Convert to fraction form
    36,046.60/49,720.98 = 21,699.88/x
  3. Step 3: Cross multiply
    36,046.60x = 49,720.98 × 21,699.88
  4. Step 4: Simplify right side
    36,046.60x = 1,078,939,299.48
  5. Step 5: Solve for x
    x = 1,078,939,299.48/36,046.60
  6. Step 6: Final answer
    x = 29,931.79

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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.