Home / 19,991.35-29,986.95-11,232.41

Finding the Fourth Proportional to 19,991.35, 29,986.95 and 11,232.41

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Solution

The fourth proportional to 19,991.35, 29,986.95 and 11,232.41 is: 16,848.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.35 : 29,986.95 = 11,232.41 : x
  2. Step 2: Convert to fraction form
    19,991.35/29,986.95 = 11,232.41/x
  3. Step 3: Cross multiply
    19,991.35x = 29,986.95 × 11,232.41
  4. Step 4: Simplify right side
    19,991.35x = 336,825,717.05
  5. Step 5: Solve for x
    x = 336,825,717.05/19,991.35
  6. Step 6: Final answer
    x = 16,848.58

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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.