Home / 16,748.89-25,127.97-13,621.17

Finding the Fourth Proportional to 16,748.89, 25,127.97 and 13,621.17

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Solution

The fourth proportional to 16,748.89, 25,127.97 and 13,621.17 is: 20,435.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,748.89 : 25,127.97 = 13,621.17 : x
  2. Step 2: Convert to fraction form
    16,748.89/25,127.97 = 13,621.17/x
  3. Step 3: Cross multiply
    16,748.89x = 25,127.97 × 13,621.17
  4. Step 4: Simplify right side
    16,748.89x = 342,272,351.12
  5. Step 5: Solve for x
    x = 342,272,351.12/16,748.89
  6. Step 6: Final answer
    x = 20,435.52

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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.