Home / 20,088.38-27,715.62-11,589.36

Finding the Fourth Proportional to 20,088.38, 27,715.62 and 11,589.36

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Solution

The fourth proportional to 20,088.38, 27,715.62 and 11,589.36 is: 15,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.38 : 27,715.62 = 11,589.36 : x
  2. Step 2: Convert to fraction form
    20,088.38/27,715.62 = 11,589.36/x
  3. Step 3: Cross multiply
    20,088.38x = 27,715.62 × 11,589.36
  4. Step 4: Simplify right side
    20,088.38x = 321,206,297.80
  5. Step 5: Solve for x
    x = 321,206,297.80/20,088.38
  6. Step 6: Final answer
    x = 15,989.66

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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.