Home / 19,449.91-29,172.43-5,410.99

Finding the Fourth Proportional to 19,449.91, 29,172.43 and 5,410.99

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Solution

The fourth proportional to 19,449.91, 29,172.43 and 5,410.99 is: 8,115.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,449.91 : 29,172.43 = 5,410.99 : x
  2. Step 2: Convert to fraction form
    19,449.91/29,172.43 = 5,410.99/x
  3. Step 3: Cross multiply
    19,449.91x = 29,172.43 × 5,410.99
  4. Step 4: Simplify right side
    19,449.91x = 157,851,727.01
  5. Step 5: Solve for x
    x = 157,851,727.01/19,449.91
  6. Step 6: Final answer
    x = 8,115.81

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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.