Home / 28,369.96-39,150.46-15,794.68

Finding the Fourth Proportional to 28,369.96, 39,150.46 and 15,794.68

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Solution

The fourth proportional to 28,369.96, 39,150.46 and 15,794.68 is: 21,796.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,369.96 : 39,150.46 = 15,794.68 : x
  2. Step 2: Convert to fraction form
    28,369.96/39,150.46 = 15,794.68/x
  3. Step 3: Cross multiply
    28,369.96x = 39,150.46 × 15,794.68
  4. Step 4: Simplify right side
    28,369.96x = 618,368,987.55
  5. Step 5: Solve for x
    x = 618,368,987.55/28,369.96
  6. Step 6: Final answer
    x = 21,796.61

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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.