Home / 20,743.35-28,628.26-11,792.20

Finding the Fourth Proportional to 20,743.35, 28,628.26 and 11,792.20

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Solution

The fourth proportional to 20,743.35, 28,628.26 and 11,792.20 is: 16,274.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.35 : 28,628.26 = 11,792.20 : x
  2. Step 2: Convert to fraction form
    20,743.35/28,628.26 = 11,792.20/x
  3. Step 3: Cross multiply
    20,743.35x = 28,628.26 × 11,792.20
  4. Step 4: Simplify right side
    20,743.35x = 337,590,176.44
  5. Step 5: Solve for x
    x = 337,590,176.44/20,743.35
  6. Step 6: Final answer
    x = 16,274.62

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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.