Home / 20,815.26-28,697.94-15,150.93

Finding the Fourth Proportional to 20,815.26, 28,697.94 and 15,150.93

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Solution

The fourth proportional to 20,815.26, 28,697.94 and 15,150.93 is: 20,888.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,815.26 : 28,697.94 = 15,150.93 : x
  2. Step 2: Convert to fraction form
    20,815.26/28,697.94 = 15,150.93/x
  3. Step 3: Cross multiply
    20,815.26x = 28,697.94 × 15,150.93
  4. Step 4: Simplify right side
    20,815.26x = 434,800,480.08
  5. Step 5: Solve for x
    x = 434,800,480.08/20,815.26
  6. Step 6: Final answer
    x = 20,888.54

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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.