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Finding the Fourth Proportional to 26,109, 36,035.28 and 14,931

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Solution

The fourth proportional to 26,109, 36,035.28 and 14,931 is: 20,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,109 : 36,035.28 = 14,931 : x
  2. Step 2: Convert to fraction form
    26,109/36,035.28 = 14,931/x
  3. Step 3: Cross multiply
    26,109x = 36,035.28 × 14,931
  4. Step 4: Simplify right side
    26,109x = 538,042,765.68
  5. Step 5: Solve for x
    x = 538,042,765.68/26,109
  6. Step 6: Final answer
    x = 20,607.56

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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.