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Finding the Fourth Proportional to 23,672, 35,489.28 and 11,819.68

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Solution

The fourth proportional to 23,672, 35,489.28 and 11,819.68 is: 17,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,672 : 35,489.28 = 11,819.68 : x
  2. Step 2: Convert to fraction form
    23,672/35,489.28 = 11,819.68/x
  3. Step 3: Cross multiply
    23,672x = 35,489.28 × 11,819.68
  4. Step 4: Simplify right side
    23,672x = 419,471,933.03
  5. Step 5: Solve for x
    x = 419,471,933.03/23,672
  6. Step 6: Final answer
    x = 17,720.17

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Why These Related Problems?

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