Home / 19,972.21-27,561.74-11,019.98

Finding the Fourth Proportional to 19,972.21, 27,561.74 and 11,019.98

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Solution

The fourth proportional to 19,972.21, 27,561.74 and 11,019.98 is: 15,207.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.21 : 27,561.74 = 11,019.98 : x
  2. Step 2: Convert to fraction form
    19,972.21/27,561.74 = 11,019.98/x
  3. Step 3: Cross multiply
    19,972.21x = 27,561.74 × 11,019.98
  4. Step 4: Simplify right side
    19,972.21x = 303,729,823.57
  5. Step 5: Solve for x
    x = 303,729,823.57/19,972.21
  6. Step 6: Final answer
    x = 15,207.62

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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.