Home / 28,514.21-42,734.32-12,696.73

Finding the Fourth Proportional to 28,514.21, 42,734.32 and 12,696.73

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Solution

The fourth proportional to 28,514.21, 42,734.32 and 12,696.73 is: 19,028.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.21 : 42,734.32 = 12,696.73 : x
  2. Step 2: Convert to fraction form
    28,514.21/42,734.32 = 12,696.73/x
  3. Step 3: Cross multiply
    28,514.21x = 42,734.32 × 12,696.73
  4. Step 4: Simplify right side
    28,514.21x = 542,585,984.20
  5. Step 5: Solve for x
    x = 542,585,984.20/28,514.21
  6. Step 6: Final answer
    x = 19,028.62

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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.