Home / 21,766.98-30,033.18-13,806.30

Finding the Fourth Proportional to 21,766.98, 30,033.18 and 13,806.30

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Solution

The fourth proportional to 21,766.98, 30,033.18 and 13,806.30 is: 19,049.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,766.98 : 30,033.18 = 13,806.30 : x
  2. Step 2: Convert to fraction form
    21,766.98/30,033.18 = 13,806.30/x
  3. Step 3: Cross multiply
    21,766.98x = 30,033.18 × 13,806.30
  4. Step 4: Simplify right side
    21,766.98x = 414,646,942.87
  5. Step 5: Solve for x
    x = 414,646,942.87/21,766.98
  6. Step 6: Final answer
    x = 19,049.36

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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.