Home / 21,234.84-29,305.71-11,804.01

Finding the Fourth Proportional to 21,234.84, 29,305.71 and 11,804.01

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Solution

The fourth proportional to 21,234.84, 29,305.71 and 11,804.01 is: 16,290.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.84 : 29,305.71 = 11,804.01 : x
  2. Step 2: Convert to fraction form
    21,234.84/29,305.71 = 11,804.01/x
  3. Step 3: Cross multiply
    21,234.84x = 29,305.71 × 11,804.01
  4. Step 4: Simplify right side
    21,234.84x = 345,924,893.90
  5. Step 5: Solve for x
    x = 345,924,893.90/21,234.84
  6. Step 6: Final answer
    x = 16,290.44

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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.