Home / 21,132.46-29,163.70-11,701.02

Finding the Fourth Proportional to 21,132.46, 29,163.70 and 11,701.02

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Solution

The fourth proportional to 21,132.46, 29,163.70 and 11,701.02 is: 16,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.46 : 29,163.70 = 11,701.02 : x
  2. Step 2: Convert to fraction form
    21,132.46/29,163.70 = 11,701.02/x
  3. Step 3: Cross multiply
    21,132.46x = 29,163.70 × 11,701.02
  4. Step 4: Simplify right side
    21,132.46x = 341,245,036.97
  5. Step 5: Solve for x
    x = 341,245,036.97/21,132.46
  6. Step 6: Final answer
    x = 16,147.91

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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.