Home / 19,009.60-28,481.67-13,453.80

Finding the Fourth Proportional to 19,009.60, 28,481.67 and 13,453.80

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Solution

The fourth proportional to 19,009.60, 28,481.67 and 13,453.80 is: 20,157.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.60 : 28,481.67 = 13,453.80 : x
  2. Step 2: Convert to fraction form
    19,009.60/28,481.67 = 13,453.80/x
  3. Step 3: Cross multiply
    19,009.60x = 28,481.67 × 13,453.80
  4. Step 4: Simplify right side
    19,009.60x = 383,186,691.85
  5. Step 5: Solve for x
    x = 383,186,691.85/19,009.60
  6. Step 6: Final answer
    x = 20,157.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.