Home / 19,205.40-28,808.10-17,893.20

Finding the Fourth Proportional to 19,205.40, 28,808.10 and 17,893.20

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Solution

The fourth proportional to 19,205.40, 28,808.10 and 17,893.20 is: 26,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,205.40 : 28,808.10 = 17,893.20 : x
  2. Step 2: Convert to fraction form
    19,205.40/28,808.10 = 17,893.20/x
  3. Step 3: Cross multiply
    19,205.40x = 28,808.10 × 17,893.20
  4. Step 4: Simplify right side
    19,205.40x = 515,469,094.92
  5. Step 5: Solve for x
    x = 515,469,094.92/19,205.40
  6. Step 6: Final answer
    x = 26,839.80

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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.