Home / 20,922.63-28,866.20-11,846.75

Finding the Fourth Proportional to 20,922.63, 28,866.20 and 11,846.75

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Solution

The fourth proportional to 20,922.63, 28,866.20 and 11,846.75 is: 16,344.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,922.63 : 28,866.20 = 11,846.75 : x
  2. Step 2: Convert to fraction form
    20,922.63/28,866.20 = 11,846.75/x
  3. Step 3: Cross multiply
    20,922.63x = 28,866.20 × 11,846.75
  4. Step 4: Simplify right side
    20,922.63x = 341,970,653.91
  5. Step 5: Solve for x
    x = 341,970,653.91/20,922.63
  6. Step 6: Final answer
    x = 16,344.54

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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.