Home / 19,971.98-27,561.21-11,019.44

Finding the Fourth Proportional to 19,971.98, 27,561.21 and 11,019.44

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Solution

The fourth proportional to 19,971.98, 27,561.21 and 11,019.44 is: 15,206.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.98 : 27,561.21 = 11,019.44 : x
  2. Step 2: Convert to fraction form
    19,971.98/27,561.21 = 11,019.44/x
  3. Step 3: Cross multiply
    19,971.98x = 27,561.21 × 11,019.44
  4. Step 4: Simplify right side
    19,971.98x = 303,709,099.92
  5. Step 5: Solve for x
    x = 303,709,099.92/19,971.98
  6. Step 6: Final answer
    x = 15,206.76

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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.