Home / 19,941.28-29,899.12-8,851.36

Finding the Fourth Proportional to 19,941.28, 29,899.12 and 8,851.36

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Solution

The fourth proportional to 19,941.28, 29,899.12 and 8,851.36 is: 13,271.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.28 : 29,899.12 = 8,851.36 : x
  2. Step 2: Convert to fraction form
    19,941.28/29,899.12 = 8,851.36/x
  3. Step 3: Cross multiply
    19,941.28x = 29,899.12 × 8,851.36
  4. Step 4: Simplify right side
    19,941.28x = 264,647,874.80
  5. Step 5: Solve for x
    x = 264,647,874.80/19,941.28
  6. Step 6: Final answer
    x = 13,271.36

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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.