Home / 20,707.54-28,576.44-11,276.14

Finding the Fourth Proportional to 20,707.54, 28,576.44 and 11,276.14

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Solution

The fourth proportional to 20,707.54, 28,576.44 and 11,276.14 is: 15,561.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707.54 : 28,576.44 = 11,276.14 : x
  2. Step 2: Convert to fraction form
    20,707.54/28,576.44 = 11,276.14/x
  3. Step 3: Cross multiply
    20,707.54x = 28,576.44 × 11,276.14
  4. Step 4: Simplify right side
    20,707.54x = 322,231,938.14
  5. Step 5: Solve for x
    x = 322,231,938.14/20,707.54
  6. Step 6: Final answer
    x = 15,561.09

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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.