Home / 21,136.43-29,168.59-11,576.13

Finding the Fourth Proportional to 21,136.43, 29,168.59 and 11,576.13

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Solution

The fourth proportional to 21,136.43, 29,168.59 and 11,576.13 is: 15,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136.43 : 29,168.59 = 11,576.13 : x
  2. Step 2: Convert to fraction form
    21,136.43/29,168.59 = 11,576.13/x
  3. Step 3: Cross multiply
    21,136.43x = 29,168.59 × 11,576.13
  4. Step 4: Simplify right side
    21,136.43x = 337,659,389.76
  5. Step 5: Solve for x
    x = 337,659,389.76/21,136.43
  6. Step 6: Final answer
    x = 15,975.24

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1.5x scale

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.