Home / 19,794.79-27,314.27-15,771.82

Finding the Fourth Proportional to 19,794.79, 27,314.27 and 15,771.82

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Solution

The fourth proportional to 19,794.79, 27,314.27 and 15,771.82 is: 21,763.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,794.79 : 27,314.27 = 15,771.82 : x
  2. Step 2: Convert to fraction form
    19,794.79/27,314.27 = 15,771.82/x
  3. Step 3: Cross multiply
    19,794.79x = 27,314.27 × 15,771.82
  4. Step 4: Simplify right side
    19,794.79x = 430,795,749.87
  5. Step 5: Solve for x
    x = 430,795,749.87/19,794.79
  6. Step 6: Final answer
    x = 21,763.09

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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.