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Finding the Fourth Proportional to 22,146.64, 30,562.36 and 12,210.64

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Solution

The fourth proportional to 22,146.64, 30,562.36 and 12,210.64 is: 16,850.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,146.64 : 30,562.36 = 12,210.64 : x
  2. Step 2: Convert to fraction form
    22,146.64/30,562.36 = 12,210.64/x
  3. Step 3: Cross multiply
    22,146.64x = 30,562.36 × 12,210.64
  4. Step 4: Simplify right side
    22,146.64x = 373,185,975.51
  5. Step 5: Solve for x
    x = 373,185,975.51/22,146.64
  6. Step 6: Final answer
    x = 16,850.68

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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.