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Finding the Fourth Proportional to 25,712.66, 35,420.05 and 21,923.48

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Solution

The fourth proportional to 25,712.66, 35,420.05 and 21,923.48 is: 30,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,712.66 : 35,420.05 = 21,923.48 : x
  2. Step 2: Convert to fraction form
    25,712.66/35,420.05 = 21,923.48/x
  3. Step 3: Cross multiply
    25,712.66x = 35,420.05 × 21,923.48
  4. Step 4: Simplify right side
    25,712.66x = 776,530,873.73
  5. Step 5: Solve for x
    x = 776,530,873.73/25,712.66
  6. Step 6: Final answer
    x = 30,200.33

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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.