Home / 20,852.58-28,769.37-11,893.62

Finding the Fourth Proportional to 20,852.58, 28,769.37 and 11,893.62

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Solution

The fourth proportional to 20,852.58, 28,769.37 and 11,893.62 is: 16,409.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,852.58 : 28,769.37 = 11,893.62 : x
  2. Step 2: Convert to fraction form
    20,852.58/28,769.37 = 11,893.62/x
  3. Step 3: Cross multiply
    20,852.58x = 28,769.37 × 11,893.62
  4. Step 4: Simplify right side
    20,852.58x = 342,171,954.42
  5. Step 5: Solve for x
    x = 342,171,954.42/20,852.58
  6. Step 6: Final answer
    x = 16,409.09

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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.