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Finding the Fourth Proportional to 40,322.66, 55,647.12 and 22,419.50

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Solution

The fourth proportional to 40,322.66, 55,647.12 and 22,419.50 is: 30,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,322.66 : 55,647.12 = 22,419.50 : x
  2. Step 2: Convert to fraction form
    40,322.66/55,647.12 = 22,419.50/x
  3. Step 3: Cross multiply
    40,322.66x = 55,647.12 × 22,419.50
  4. Step 4: Simplify right side
    40,322.66x = 1,247,580,606.84
  5. Step 5: Solve for x
    x = 1,247,580,606.84/40,322.66
  6. Step 6: Final answer
    x = 30,939.94

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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.