Home / 19,189.20-28,746.12-17,099.40

Finding the Fourth Proportional to 19,189.20, 28,746.12 and 17,099.40

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Solution

The fourth proportional to 19,189.20, 28,746.12 and 17,099.40 is: 25,615.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.20 : 28,746.12 = 17,099.40 : x
  2. Step 2: Convert to fraction form
    19,189.20/28,746.12 = 17,099.40/x
  3. Step 3: Cross multiply
    19,189.20x = 28,746.12 × 17,099.40
  4. Step 4: Simplify right side
    19,189.20x = 491,541,404.33
  5. Step 5: Solve for x
    x = 491,541,404.33/19,189.20
  6. Step 6: Final answer
    x = 25,615.52

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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.