Home / 20,081.85-27,715.94-11,582.38

Finding the Fourth Proportional to 20,081.85, 27,715.94 and 11,582.38

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Solution

The fourth proportional to 20,081.85, 27,715.94 and 11,582.38 is: 15,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.85 : 27,715.94 = 11,582.38 : x
  2. Step 2: Convert to fraction form
    20,081.85/27,715.94 = 11,582.38/x
  3. Step 3: Cross multiply
    20,081.85x = 27,715.94 × 11,582.38
  4. Step 4: Simplify right side
    20,081.85x = 321,016,549.14
  5. Step 5: Solve for x
    x = 321,016,549.14/20,081.85
  6. Step 6: Final answer
    x = 15,985.41

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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.