Home / 17,129.66-25,695.36-5,443.79

Finding the Fourth Proportional to 17,129.66, 25,695.36 and 5,443.79

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Solution

The fourth proportional to 17,129.66, 25,695.36 and 5,443.79 is: 8,165.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.66 : 25,695.36 = 5,443.79 : x
  2. Step 2: Convert to fraction form
    17,129.66/25,695.36 = 5,443.79/x
  3. Step 3: Cross multiply
    17,129.66x = 25,695.36 × 5,443.79
  4. Step 4: Simplify right side
    17,129.66x = 139,880,015.34
  5. Step 5: Solve for x
    x = 139,880,015.34/17,129.66
  6. Step 6: Final answer
    x = 8,165.96

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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.