Home / 20,314.54-28,022.31-12,242.68

Finding the Fourth Proportional to 20,314.54, 28,022.31 and 12,242.68

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Solution

The fourth proportional to 20,314.54, 28,022.31 and 12,242.68 is: 16,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.54 : 28,022.31 = 12,242.68 : x
  2. Step 2: Convert to fraction form
    20,314.54/28,022.31 = 12,242.68/x
  3. Step 3: Cross multiply
    20,314.54x = 28,022.31 × 12,242.68
  4. Step 4: Simplify right side
    20,314.54x = 343,068,174.19
  5. Step 5: Solve for x
    x = 343,068,174.19/20,314.54
  6. Step 6: Final answer
    x = 16,887.81

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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.