Home / 19,189.39-28,784.10-5,338.39

Finding the Fourth Proportional to 19,189.39, 28,784.10 and 5,338.39

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Solution

The fourth proportional to 19,189.39, 28,784.10 and 5,338.39 is: 8,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.39 : 28,784.10 = 5,338.39 : x
  2. Step 2: Convert to fraction form
    19,189.39/28,784.10 = 5,338.39/x
  3. Step 3: Cross multiply
    19,189.39x = 28,784.10 × 5,338.39
  4. Step 4: Simplify right side
    19,189.39x = 153,660,751.60
  5. Step 5: Solve for x
    x = 153,660,751.60/19,189.39
  6. Step 6: Final answer
    x = 8,007.59

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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.