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Finding the Fourth Proportional to 19,522.32, 26,939.16 and 11,455.12

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Solution

The fourth proportional to 19,522.32, 26,939.16 and 11,455.12 is: 15,807.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,522.32 : 26,939.16 = 11,455.12 : x
  2. Step 2: Convert to fraction form
    19,522.32/26,939.16 = 11,455.12/x
  3. Step 3: Cross multiply
    19,522.32x = 26,939.16 × 11,455.12
  4. Step 4: Simplify right side
    19,522.32x = 308,591,311.96
  5. Step 5: Solve for x
    x = 308,591,311.96/19,522.32
  6. Step 6: Final answer
    x = 15,807.11

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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.