Home / 20,627.43-28,465.74-11,195.97

Finding the Fourth Proportional to 20,627.43, 28,465.74 and 11,195.97

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Solution

The fourth proportional to 20,627.43, 28,465.74 and 11,195.97 is: 15,450.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.43 : 28,465.74 = 11,195.97 : x
  2. Step 2: Convert to fraction form
    20,627.43/28,465.74 = 11,195.97/x
  3. Step 3: Cross multiply
    20,627.43x = 28,465.74 × 11,195.97
  4. Step 4: Simplify right side
    20,627.43x = 318,701,571.07
  5. Step 5: Solve for x
    x = 318,701,571.07/20,627.43
  6. Step 6: Final answer
    x = 15,450.38

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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.