Home / 21,664.76-29,899.20-12,235.04

Finding the Fourth Proportional to 21,664.76, 29,899.20 and 12,235.04

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Solution

The fourth proportional to 21,664.76, 29,899.20 and 12,235.04 is: 16,885.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.76 : 29,899.20 = 12,235.04 : x
  2. Step 2: Convert to fraction form
    21,664.76/29,899.20 = 12,235.04/x
  3. Step 3: Cross multiply
    21,664.76x = 29,899.20 × 12,235.04
  4. Step 4: Simplify right side
    21,664.76x = 365,817,907.97
  5. Step 5: Solve for x
    x = 365,817,907.97/21,664.76
  6. Step 6: Final answer
    x = 16,885.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.