Home / 21,683.18-29,923.24-11,992.94

Finding the Fourth Proportional to 21,683.18, 29,923.24 and 11,992.94

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Solution

The fourth proportional to 21,683.18, 29,923.24 and 11,992.94 is: 16,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,683.18 : 29,923.24 = 11,992.94 : x
  2. Step 2: Convert to fraction form
    21,683.18/29,923.24 = 11,992.94/x
  3. Step 3: Cross multiply
    21,683.18x = 29,923.24 × 11,992.94
  4. Step 4: Simplify right side
    21,683.18x = 358,867,621.93
  5. Step 5: Solve for x
    x = 358,867,621.93/21,683.18
  6. Step 6: Final answer
    x = 16,550.51

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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.