Home / 28,195.39-38,907.96-15,619.23

Finding the Fourth Proportional to 28,195.39, 38,907.96 and 15,619.23

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Solution

The fourth proportional to 28,195.39, 38,907.96 and 15,619.23 is: 21,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.39 : 38,907.96 = 15,619.23 : x
  2. Step 2: Convert to fraction form
    28,195.39/38,907.96 = 15,619.23/x
  3. Step 3: Cross multiply
    28,195.39x = 38,907.96 × 15,619.23
  4. Step 4: Simplify right side
    28,195.39x = 607,712,297.97
  5. Step 5: Solve for x
    x = 607,712,297.97/28,195.39
  6. Step 6: Final answer
    x = 21,553.60

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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.