Home / 19,261.24-28,879.39-12,667.43

Finding the Fourth Proportional to 19,261.24, 28,879.39 and 12,667.43

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Solution

The fourth proportional to 19,261.24, 28,879.39 and 12,667.43 is: 18,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.24 : 28,879.39 = 12,667.43 : x
  2. Step 2: Convert to fraction form
    19,261.24/28,879.39 = 12,667.43/x
  3. Step 3: Cross multiply
    19,261.24x = 28,879.39 × 12,667.43
  4. Step 4: Simplify right side
    19,261.24x = 365,827,651.27
  5. Step 5: Solve for x
    x = 365,827,651.27/19,261.24
  6. Step 6: Final answer
    x = 18,992.94

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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.