Home / 20,735.80-28,613.82-11,783.44

Finding the Fourth Proportional to 20,735.80, 28,613.82 and 11,783.44

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Solution

The fourth proportional to 20,735.80, 28,613.82 and 11,783.44 is: 16,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.80 : 28,613.82 = 11,783.44 : x
  2. Step 2: Convert to fraction form
    20,735.80/28,613.82 = 11,783.44/x
  3. Step 3: Cross multiply
    20,735.80x = 28,613.82 × 11,783.44
  4. Step 4: Simplify right side
    20,735.80x = 337,169,231.14
  5. Step 5: Solve for x
    x = 337,169,231.14/20,735.80
  6. Step 6: Final answer
    x = 16,260.25

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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.