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Finding the Fourth Proportional to 20,362.77, 28,100.39 and 11,410.25

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Solution

The fourth proportional to 20,362.77, 28,100.39 and 11,410.25 is: 15,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,362.77 : 28,100.39 = 11,410.25 : x
  2. Step 2: Convert to fraction form
    20,362.77/28,100.39 = 11,410.25/x
  3. Step 3: Cross multiply
    20,362.77x = 28,100.39 × 11,410.25
  4. Step 4: Simplify right side
    20,362.77x = 320,632,277.44
  5. Step 5: Solve for x
    x = 320,632,277.44/20,362.77
  6. Step 6: Final answer
    x = 15,746.00

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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.