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Finding the Fourth Proportional to 26,849.21, 40,270.73 and 7,129.31

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Solution

The fourth proportional to 26,849.21, 40,270.73 and 7,129.31 is: 10,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,849.21 : 40,270.73 = 7,129.31 : x
  2. Step 2: Convert to fraction form
    26,849.21/40,270.73 = 7,129.31/x
  3. Step 3: Cross multiply
    26,849.21x = 40,270.73 × 7,129.31
  4. Step 4: Simplify right side
    26,849.21x = 287,102,636.60
  5. Step 5: Solve for x
    x = 287,102,636.60/26,849.21
  6. Step 6: Final answer
    x = 10,693.15

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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.