Home / 20,846.35-28,765.29-11,893.33

Finding the Fourth Proportional to 20,846.35, 28,765.29 and 11,893.33

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Solution

The fourth proportional to 20,846.35, 28,765.29 and 11,893.33 is: 16,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.35 : 28,765.29 = 11,893.33 : x
  2. Step 2: Convert to fraction form
    20,846.35/28,765.29 = 11,893.33/x
  3. Step 3: Cross multiply
    20,846.35x = 28,765.29 × 11,893.33
  4. Step 4: Simplify right side
    20,846.35x = 342,115,086.52
  5. Step 5: Solve for x
    x = 342,115,086.52/20,846.35
  6. Step 6: Final answer
    x = 16,411.27

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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.