Home / 19,794.42-27,317.58-12,992.51

Finding the Fourth Proportional to 19,794.42, 27,317.58 and 12,992.51

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Solution

The fourth proportional to 19,794.42, 27,317.58 and 12,992.51 is: 17,930.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.42 : 27,317.58 = 12,992.51 : x
  2. Step 2: Convert to fraction form
    19,794.42/27,317.58 = 12,992.51/x
  3. Step 3: Cross multiply
    19,794.42x = 27,317.58 × 12,992.51
  4. Step 4: Simplify right side
    19,794.42x = 354,923,794.74
  5. Step 5: Solve for x
    x = 354,923,794.74/19,794.42
  6. Step 6: Final answer
    x = 17,930.50

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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.