Home / 28,669.28-43,020.30-11,136.83

Finding the Fourth Proportional to 28,669.28, 43,020.30 and 11,136.83

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Solution

The fourth proportional to 28,669.28, 43,020.30 and 11,136.83 is: 16,711.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.28 : 43,020.30 = 11,136.83 : x
  2. Step 2: Convert to fraction form
    28,669.28/43,020.30 = 11,136.83/x
  3. Step 3: Cross multiply
    28,669.28x = 43,020.30 × 11,136.83
  4. Step 4: Simplify right side
    28,669.28x = 479,109,767.65
  5. Step 5: Solve for x
    x = 479,109,767.65/28,669.28
  6. Step 6: Final answer
    x = 16,711.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.