Home / 20,255.01-27,951.86-11,302.42

Finding the Fourth Proportional to 20,255.01, 27,951.86 and 11,302.42

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Solution

The fourth proportional to 20,255.01, 27,951.86 and 11,302.42 is: 15,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.01 : 27,951.86 = 11,302.42 : x
  2. Step 2: Convert to fraction form
    20,255.01/27,951.86 = 11,302.42/x
  3. Step 3: Cross multiply
    20,255.01x = 27,951.86 × 11,302.42
  4. Step 4: Simplify right side
    20,255.01x = 315,923,661.50
  5. Step 5: Solve for x
    x = 315,923,661.50/20,255.01
  6. Step 6: Final answer
    x = 15,597.31

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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.