Home / 20,383.14-28,127.41-11,430.58

Finding the Fourth Proportional to 20,383.14, 28,127.41 and 11,430.58

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Solution

The fourth proportional to 20,383.14, 28,127.41 and 11,430.58 is: 15,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383.14 : 28,127.41 = 11,430.58 : x
  2. Step 2: Convert to fraction form
    20,383.14/28,127.41 = 11,430.58/x
  3. Step 3: Cross multiply
    20,383.14x = 28,127.41 × 11,430.58
  4. Step 4: Simplify right side
    20,383.14x = 321,512,610.20
  5. Step 5: Solve for x
    x = 321,512,610.20/20,383.14
  6. Step 6: Final answer
    x = 15,773.46

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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.