Home / 16,450.75-22,681.43-13,729.19

Finding the Fourth Proportional to 16,450.75, 22,681.43 and 13,729.19

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Solution

The fourth proportional to 16,450.75, 22,681.43 and 13,729.19 is: 18,929.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,450.75 : 22,681.43 = 13,729.19 : x
  2. Step 2: Convert to fraction form
    16,450.75/22,681.43 = 13,729.19/x
  3. Step 3: Cross multiply
    16,450.75x = 22,681.43 × 13,729.19
  4. Step 4: Simplify right side
    16,450.75x = 311,397,608.60
  5. Step 5: Solve for x
    x = 311,397,608.60/16,450.75
  6. Step 6: Final answer
    x = 18,929.09

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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.