Home / 19,099.20-26,416.80-16,891.20

Finding the Fourth Proportional to 19,099.20, 26,416.80 and 16,891.20

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Solution

The fourth proportional to 19,099.20, 26,416.80 and 16,891.20 is: 23,362.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,099.20 : 26,416.80 = 16,891.20 : x
  2. Step 2: Convert to fraction form
    19,099.20/26,416.80 = 16,891.20/x
  3. Step 3: Cross multiply
    19,099.20x = 26,416.80 × 16,891.20
  4. Step 4: Simplify right side
    19,099.20x = 446,211,452.16
  5. Step 5: Solve for x
    x = 446,211,452.16/19,099.20
  6. Step 6: Final answer
    x = 23,362.83

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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.