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Finding the Fourth Proportional to 17,900.03, 26,850.18 and 5,421.03

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Solution

The fourth proportional to 17,900.03, 26,850.18 and 5,421.03 is: 8,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,900.03 : 26,850.18 = 5,421.03 : x
  2. Step 2: Convert to fraction form
    17,900.03/26,850.18 = 5,421.03/x
  3. Step 3: Cross multiply
    17,900.03x = 26,850.18 × 5,421.03
  4. Step 4: Simplify right side
    17,900.03x = 145,555,533.77
  5. Step 5: Solve for x
    x = 145,555,533.77/17,900.03
  6. Step 6: Final answer
    x = 8,131.58

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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.