Home / 28,409.26-39,174.01-19,340.50

Finding the Fourth Proportional to 28,409.26, 39,174.01 and 19,340.50

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Solution

The fourth proportional to 28,409.26, 39,174.01 and 19,340.50 is: 26,668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.26 : 39,174.01 = 19,340.50 : x
  2. Step 2: Convert to fraction form
    28,409.26/39,174.01 = 19,340.50/x
  3. Step 3: Cross multiply
    28,409.26x = 39,174.01 × 19,340.50
  4. Step 4: Simplify right side
    28,409.26x = 757,644,940.41
  5. Step 5: Solve for x
    x = 757,644,940.41/28,409.26
  6. Step 6: Final answer
    x = 26,668.94

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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.