Home / 19,786.86-29,675.64-5,743.19

Finding the Fourth Proportional to 19,786.86, 29,675.64 and 5,743.19

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Solution

The fourth proportional to 19,786.86, 29,675.64 and 5,743.19 is: 8,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.86 : 29,675.64 = 5,743.19 : x
  2. Step 2: Convert to fraction form
    19,786.86/29,675.64 = 5,743.19/x
  3. Step 3: Cross multiply
    19,786.86x = 29,675.64 × 5,743.19
  4. Step 4: Simplify right side
    19,786.86x = 170,432,661.80
  5. Step 5: Solve for x
    x = 170,432,661.80/19,786.86
  6. Step 6: Final answer
    x = 8,613.43

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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.