Home / 19,791.42-29,684.39-4,999.43

Finding the Fourth Proportional to 19,791.42, 29,684.39 and 4,999.43

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Solution

The fourth proportional to 19,791.42, 29,684.39 and 4,999.43 is: 7,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.42 : 29,684.39 = 4,999.43 : x
  2. Step 2: Convert to fraction form
    19,791.42/29,684.39 = 4,999.43/x
  3. Step 3: Cross multiply
    19,791.42x = 29,684.39 × 4,999.43
  4. Step 4: Simplify right side
    19,791.42x = 148,404,856.48
  5. Step 5: Solve for x
    x = 148,404,856.48/19,791.42
  6. Step 6: Final answer
    x = 7,498.44

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1.5x scale

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.