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Finding the Fourth Proportional to 31,244, 43,121.84 and 18,003.68

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Solution

The fourth proportional to 31,244, 43,121.84 and 18,003.68 is: 24,848.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,244 : 43,121.84 = 18,003.68 : x
  2. Step 2: Convert to fraction form
    31,244/43,121.84 = 18,003.68/x
  3. Step 3: Cross multiply
    31,244x = 43,121.84 × 18,003.68
  4. Step 4: Simplify right side
    31,244x = 776,351,808.37
  5. Step 5: Solve for x
    x = 776,351,808.37/31,244
  6. Step 6: Final answer
    x = 24,848.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.