Home / 20,963.23-28,930.26-12,010.75

Finding the Fourth Proportional to 20,963.23, 28,930.26 and 12,010.75

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Solution

The fourth proportional to 20,963.23, 28,930.26 and 12,010.75 is: 16,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.23 : 28,930.26 = 12,010.75 : x
  2. Step 2: Convert to fraction form
    20,963.23/28,930.26 = 12,010.75/x
  3. Step 3: Cross multiply
    20,963.23x = 28,930.26 × 12,010.75
  4. Step 4: Simplify right side
    20,963.23x = 347,474,120.30
  5. Step 5: Solve for x
    x = 347,474,120.30/20,963.23
  6. Step 6: Final answer
    x = 16,575.41

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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.