Home / 19,218.19-28,824.90-5,179.32

Finding the Fourth Proportional to 19,218.19, 28,824.90 and 5,179.32

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Solution

The fourth proportional to 19,218.19, 28,824.90 and 5,179.32 is: 7,768.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.19 : 28,824.90 = 5,179.32 : x
  2. Step 2: Convert to fraction form
    19,218.19/28,824.90 = 5,179.32/x
  3. Step 3: Cross multiply
    19,218.19x = 28,824.90 × 5,179.32
  4. Step 4: Simplify right side
    19,218.19x = 149,293,321.95
  5. Step 5: Solve for x
    x = 149,293,321.95/19,218.19
  6. Step 6: Final answer
    x = 7,768.33

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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.