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Finding the Fourth Proportional to 19,873.68, 29,816.76 and 8,192.40

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Solution

The fourth proportional to 19,873.68, 29,816.76 and 8,192.40 is: 12,291.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.68 : 29,816.76 = 8,192.40 : x
  2. Step 2: Convert to fraction form
    19,873.68/29,816.76 = 8,192.40/x
  3. Step 3: Cross multiply
    19,873.68x = 29,816.76 × 8,192.40
  4. Step 4: Simplify right side
    19,873.68x = 244,270,824.62
  5. Step 5: Solve for x
    x = 244,270,824.62/19,873.68
  6. Step 6: Final answer
    x = 12,291.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.