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Finding the Fourth Proportional to 14,401, 21,601.50 and 3,457

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Solution

The fourth proportional to 14,401, 21,601.50 and 3,457 is: 5,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,401 : 21,601.50 = 3,457 : x
  2. Step 2: Convert to fraction form
    14,401/21,601.50 = 3,457/x
  3. Step 3: Cross multiply
    14,401x = 21,601.50 × 3,457
  4. Step 4: Simplify right side
    14,401x = 74,676,385.50
  5. Step 5: Solve for x
    x = 74,676,385.50/14,401
  6. Step 6: Final answer
    x = 5,185.50

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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.