Home / 21,136.32-29,167.72-11,704.96

Finding the Fourth Proportional to 21,136.32, 29,167.72 and 11,704.96

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Solution

The fourth proportional to 21,136.32, 29,167.72 and 11,704.96 is: 16,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.32 : 29,167.72 = 11,704.96 : x
  2. Step 2: Convert to fraction form
    21,136.32/29,167.72 = 11,704.96/x
  3. Step 3: Cross multiply
    21,136.32x = 29,167.72 × 11,704.96
  4. Step 4: Simplify right side
    21,136.32x = 341,406,995.89
  5. Step 5: Solve for x
    x = 341,406,995.89/21,136.32
  6. Step 6: Final answer
    x = 16,152.62

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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.