Home / 19,990.44-27,596.79-12,439.26

Finding the Fourth Proportional to 19,990.44, 27,596.79 and 12,439.26

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Solution

The fourth proportional to 19,990.44, 27,596.79 and 12,439.26 is: 17,172.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.44 : 27,596.79 = 12,439.26 : x
  2. Step 2: Convert to fraction form
    19,990.44/27,596.79 = 12,439.26/x
  3. Step 3: Cross multiply
    19,990.44x = 27,596.79 × 12,439.26
  4. Step 4: Simplify right side
    19,990.44x = 343,283,645.98
  5. Step 5: Solve for x
    x = 343,283,645.98/19,990.44
  6. Step 6: Final answer
    x = 17,172.39

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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.