Home / 20,626.62-28,465.36-11,195.80

Finding the Fourth Proportional to 20,626.62, 28,465.36 and 11,195.80

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Solution

The fourth proportional to 20,626.62, 28,465.36 and 11,195.80 is: 15,450.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.62 : 28,465.36 = 11,195.80 : x
  2. Step 2: Convert to fraction form
    20,626.62/28,465.36 = 11,195.80/x
  3. Step 3: Cross multiply
    20,626.62x = 28,465.36 × 11,195.80
  4. Step 4: Simplify right side
    20,626.62x = 318,692,477.49
  5. Step 5: Solve for x
    x = 318,692,477.49/20,626.62
  6. Step 6: Final answer
    x = 15,450.54

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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.