Home / 20,089.68-27,704.53-12,021.96

Finding the Fourth Proportional to 20,089.68, 27,704.53 and 12,021.96

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Solution

The fourth proportional to 20,089.68, 27,704.53 and 12,021.96 is: 16,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.68 : 27,704.53 = 12,021.96 : x
  2. Step 2: Convert to fraction form
    20,089.68/27,704.53 = 12,021.96/x
  3. Step 3: Cross multiply
    20,089.68x = 27,704.53 × 12,021.96
  4. Step 4: Simplify right side
    20,089.68x = 333,062,751.48
  5. Step 5: Solve for x
    x = 333,062,751.48/20,089.68
  6. Step 6: Final answer
    x = 16,578.80

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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.