Home / 23,172.06-31,977.94-13,099.90

Finding the Fourth Proportional to 23,172.06, 31,977.94 and 13,099.90

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Solution

The fourth proportional to 23,172.06, 31,977.94 and 13,099.90 is: 18,078.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,172.06 : 31,977.94 = 13,099.90 : x
  2. Step 2: Convert to fraction form
    23,172.06/31,977.94 = 13,099.90/x
  3. Step 3: Cross multiply
    23,172.06x = 31,977.94 × 13,099.90
  4. Step 4: Simplify right side
    23,172.06x = 418,907,816.21
  5. Step 5: Solve for x
    x = 418,907,816.21/23,172.06
  6. Step 6: Final answer
    x = 18,078.14

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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.