Home / 19,181.20-28,734.14-17,091.40

Finding the Fourth Proportional to 19,181.20, 28,734.14 and 17,091.40

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Solution

The fourth proportional to 19,181.20, 28,734.14 and 17,091.40 is: 25,603.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.20 : 28,734.14 = 17,091.40 : x
  2. Step 2: Convert to fraction form
    19,181.20/28,734.14 = 17,091.40/x
  3. Step 3: Cross multiply
    19,181.20x = 28,734.14 × 17,091.40
  4. Step 4: Simplify right side
    19,181.20x = 491,106,680.40
  5. Step 5: Solve for x
    x = 491,106,680.40/19,181.20
  6. Step 6: Final answer
    x = 25,603.54

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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.