Home / 20,629.94-28,461.35-11,675.39

Finding the Fourth Proportional to 20,629.94, 28,461.35 and 11,675.39

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Solution

The fourth proportional to 20,629.94, 28,461.35 and 11,675.39 is: 16,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.94 : 28,461.35 = 11,675.39 : x
  2. Step 2: Convert to fraction form
    20,629.94/28,461.35 = 11,675.39/x
  3. Step 3: Cross multiply
    20,629.94x = 28,461.35 × 11,675.39
  4. Step 4: Simplify right side
    20,629.94x = 332,297,302.80
  5. Step 5: Solve for x
    x = 332,297,302.80/20,629.94
  6. Step 6: Final answer
    x = 16,107.53

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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.