Home / 21,986.24-30,340.98-11,914.49

Finding the Fourth Proportional to 21,986.24, 30,340.98 and 11,914.49

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Solution

The fourth proportional to 21,986.24, 30,340.98 and 11,914.49 is: 16,441.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,986.24 : 30,340.98 = 11,914.49 : x
  2. Step 2: Convert to fraction form
    21,986.24/30,340.98 = 11,914.49/x
  3. Step 3: Cross multiply
    21,986.24x = 30,340.98 × 11,914.49
  4. Step 4: Simplify right side
    21,986.24x = 361,497,378.65
  5. Step 5: Solve for x
    x = 361,497,378.65/21,986.24
  6. Step 6: Final answer
    x = 16,441.99

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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.