Home / 21,136.46-29,169.22-11,705.02

Finding the Fourth Proportional to 21,136.46, 29,169.22 and 11,705.02

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Solution

The fourth proportional to 21,136.46, 29,169.22 and 11,705.02 is: 16,153.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.46 : 29,169.22 = 11,705.02 : x
  2. Step 2: Convert to fraction form
    21,136.46/29,169.22 = 11,705.02/x
  3. Step 3: Cross multiply
    21,136.46x = 29,169.22 × 11,705.02
  4. Step 4: Simplify right side
    21,136.46x = 341,426,303.48
  5. Step 5: Solve for x
    x = 341,426,303.48/21,136.46
  6. Step 6: Final answer
    x = 16,153.43

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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.