Home / 19,881.06-27,449.46-18,195.99

Finding the Fourth Proportional to 19,881.06, 27,449.46 and 18,195.99

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Solution

The fourth proportional to 19,881.06, 27,449.46 and 18,195.99 is: 25,122.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.06 : 27,449.46 = 18,195.99 : x
  2. Step 2: Convert to fraction form
    19,881.06/27,449.46 = 18,195.99/x
  3. Step 3: Cross multiply
    19,881.06x = 27,449.46 × 18,195.99
  4. Step 4: Simplify right side
    19,881.06x = 499,470,099.67
  5. Step 5: Solve for x
    x = 499,470,099.67/19,881.06
  6. Step 6: Final answer
    x = 25,122.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.