Home / 20,516.82-28,313.22-11,085.36

Finding the Fourth Proportional to 20,516.82, 28,313.22 and 11,085.36

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Solution

The fourth proportional to 20,516.82, 28,313.22 and 11,085.36 is: 15,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.82 : 28,313.22 = 11,085.36 : x
  2. Step 2: Convert to fraction form
    20,516.82/28,313.22 = 11,085.36/x
  3. Step 3: Cross multiply
    20,516.82x = 28,313.22 × 11,085.36
  4. Step 4: Simplify right side
    20,516.82x = 313,862,236.46
  5. Step 5: Solve for x
    x = 313,862,236.46/20,516.82
  6. Step 6: Final answer
    x = 15,297.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.