Home / 19,278.39-28,847.16-11,384.64

Finding the Fourth Proportional to 19,278.39, 28,847.16 and 11,384.64

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Solution

The fourth proportional to 19,278.39, 28,847.16 and 11,384.64 is: 17,035.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.39 : 28,847.16 = 11,384.64 : x
  2. Step 2: Convert to fraction form
    19,278.39/28,847.16 = 11,384.64/x
  3. Step 3: Cross multiply
    19,278.39x = 28,847.16 × 11,384.64
  4. Step 4: Simplify right side
    19,278.39x = 328,414,531.62
  5. Step 5: Solve for x
    x = 328,414,531.62/19,278.39
  6. Step 6: Final answer
    x = 17,035.37

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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.