Home / 20,136.58-27,786.45-11,757.94

Finding the Fourth Proportional to 20,136.58, 27,786.45 and 11,757.94

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Solution

The fourth proportional to 20,136.58, 27,786.45 and 11,757.94 is: 16,224.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.58 : 27,786.45 = 11,757.94 : x
  2. Step 2: Convert to fraction form
    20,136.58/27,786.45 = 11,757.94/x
  3. Step 3: Cross multiply
    20,136.58x = 27,786.45 × 11,757.94
  4. Step 4: Simplify right side
    20,136.58x = 326,711,411.91
  5. Step 5: Solve for x
    x = 326,711,411.91/20,136.58
  6. Step 6: Final answer
    x = 16,224.77

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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.