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Finding the Fourth Proportional to 22,130.74, 30,540.06 and 12,059.30

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Solution

The fourth proportional to 22,130.74, 30,540.06 and 12,059.30 is: 16,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.74 : 30,540.06 = 12,059.30 : x
  2. Step 2: Convert to fraction form
    22,130.74/30,540.06 = 12,059.30/x
  3. Step 3: Cross multiply
    22,130.74x = 30,540.06 × 12,059.30
  4. Step 4: Simplify right side
    22,130.74x = 368,291,745.56
  5. Step 5: Solve for x
    x = 368,291,745.56/22,130.74
  6. Step 6: Final answer
    x = 16,641.64

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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.