Home / 21,163.16-29,204.16-11,731.52

Finding the Fourth Proportional to 21,163.16, 29,204.16 and 11,731.52

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Solution

The fourth proportional to 21,163.16, 29,204.16 and 11,731.52 is: 16,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,163.16 : 29,204.16 = 11,731.52 : x
  2. Step 2: Convert to fraction form
    21,163.16/29,204.16 = 11,731.52/x
  3. Step 3: Cross multiply
    21,163.16x = 29,204.16 × 11,731.52
  4. Step 4: Simplify right side
    21,163.16x = 342,609,187.12
  5. Step 5: Solve for x
    x = 342,609,187.12/21,163.16
  6. Step 6: Final answer
    x = 16,188.94

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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.