Home / 19,884.15-29,824.67-8,791.20

Finding the Fourth Proportional to 19,884.15, 29,824.67 and 8,791.20

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Solution

The fourth proportional to 19,884.15, 29,824.67 and 8,791.20 is: 13,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884.15 : 29,824.67 = 8,791.20 : x
  2. Step 2: Convert to fraction form
    19,884.15/29,824.67 = 8,791.20/x
  3. Step 3: Cross multiply
    19,884.15x = 29,824.67 × 8,791.20
  4. Step 4: Simplify right side
    19,884.15x = 262,194,594.95
  5. Step 5: Solve for x
    x = 262,194,594.95/19,884.15
  6. Step 6: Final answer
    x = 13,186.11

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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.