Home / 20,083.04-27,716.32-11,586.72

Finding the Fourth Proportional to 20,083.04, 27,716.32 and 11,586.72

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Solution

The fourth proportional to 20,083.04, 27,716.32 and 11,586.72 is: 15,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.04 : 27,716.32 = 11,586.72 : x
  2. Step 2: Convert to fraction form
    20,083.04/27,716.32 = 11,586.72/x
  3. Step 3: Cross multiply
    20,083.04x = 27,716.32 × 11,586.72
  4. Step 4: Simplify right side
    20,083.04x = 321,141,239.27
  5. Step 5: Solve for x
    x = 321,141,239.27/20,083.04
  6. Step 6: Final answer
    x = 15,990.67

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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.