Home / 19,680.03-29,512.22-7,197.21

Finding the Fourth Proportional to 19,680.03, 29,512.22 and 7,197.21

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Solution

The fourth proportional to 19,680.03, 29,512.22 and 7,197.21 is: 10,792.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.03 : 29,512.22 = 7,197.21 : x
  2. Step 2: Convert to fraction form
    19,680.03/29,512.22 = 7,197.21/x
  3. Step 3: Cross multiply
    19,680.03x = 29,512.22 × 7,197.21
  4. Step 4: Simplify right side
    19,680.03x = 212,405,608.92
  5. Step 5: Solve for x
    x = 212,405,608.92/19,680.03
  6. Step 6: Final answer
    x = 10,792.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.