Home / 21,529.68-29,709.27-11,968.98

Finding the Fourth Proportional to 21,529.68, 29,709.27 and 11,968.98

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Solution

The fourth proportional to 21,529.68, 29,709.27 and 11,968.98 is: 16,516.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.68 : 29,709.27 = 11,968.98 : x
  2. Step 2: Convert to fraction form
    21,529.68/29,709.27 = 11,968.98/x
  3. Step 3: Cross multiply
    21,529.68x = 29,709.27 × 11,968.98
  4. Step 4: Simplify right side
    21,529.68x = 355,589,658.44
  5. Step 5: Solve for x
    x = 355,589,658.44/21,529.68
  6. Step 6: Final answer
    x = 16,516.26

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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.