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Finding the Fourth Proportional to 33,690, 50,534.80 and 8,729.99

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Solution

The fourth proportional to 33,690, 50,534.80 and 8,729.99 is: 13,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,690 : 50,534.80 = 8,729.99 : x
  2. Step 2: Convert to fraction form
    33,690/50,534.80 = 8,729.99/x
  3. Step 3: Cross multiply
    33,690x = 50,534.80 × 8,729.99
  4. Step 4: Simplify right side
    33,690x = 441,168,024.15
  5. Step 5: Solve for x
    x = 441,168,024.15/33,690
  6. Step 6: Final answer
    x = 13,094.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.