Home / 19,871.43-29,782.93-10,986.41

Finding the Fourth Proportional to 19,871.43, 29,782.93 and 10,986.41

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Solution

The fourth proportional to 19,871.43, 29,782.93 and 10,986.41 is: 16,466.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.43 : 29,782.93 = 10,986.41 : x
  2. Step 2: Convert to fraction form
    19,871.43/29,782.93 = 10,986.41/x
  3. Step 3: Cross multiply
    19,871.43x = 29,782.93 × 10,986.41
  4. Step 4: Simplify right side
    19,871.43x = 327,207,479.98
  5. Step 5: Solve for x
    x = 327,207,479.98/19,871.43
  6. Step 6: Final answer
    x = 16,466.23

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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.