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Finding the Fourth Proportional to 17,881.57, 26,823.31 and 5,401.28

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Solution

The fourth proportional to 17,881.57, 26,823.31 and 5,401.28 is: 8,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,881.57 : 26,823.31 = 5,401.28 : x
  2. Step 2: Convert to fraction form
    17,881.57/26,823.31 = 5,401.28/x
  3. Step 3: Cross multiply
    17,881.57x = 26,823.31 × 5,401.28
  4. Step 4: Simplify right side
    17,881.57x = 144,880,299.37
  5. Step 5: Solve for x
    x = 144,880,299.37/17,881.57
  6. Step 6: Final answer
    x = 8,102.21

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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.