Home / 28,898.76-43,356.88-20,481.54

Finding the Fourth Proportional to 28,898.76, 43,356.88 and 20,481.54

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Solution

The fourth proportional to 28,898.76, 43,356.88 and 20,481.54 is: 30,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,898.76 : 43,356.88 = 20,481.54 : x
  2. Step 2: Convert to fraction form
    28,898.76/43,356.88 = 20,481.54/x
  3. Step 3: Cross multiply
    28,898.76x = 43,356.88 × 20,481.54
  4. Step 4: Simplify right side
    28,898.76x = 888,015,729.18
  5. Step 5: Solve for x
    x = 888,015,729.18/28,898.76
  6. Step 6: Final answer
    x = 30,728.51

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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.