Home / 19,690.24-29,540.35-6,542.68

Finding the Fourth Proportional to 19,690.24, 29,540.35 and 6,542.68

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Solution

The fourth proportional to 19,690.24, 29,540.35 and 6,542.68 is: 9,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.24 : 29,540.35 = 6,542.68 : x
  2. Step 2: Convert to fraction form
    19,690.24/29,540.35 = 6,542.68/x
  3. Step 3: Cross multiply
    19,690.24x = 29,540.35 × 6,542.68
  4. Step 4: Simplify right side
    19,690.24x = 193,273,057.14
  5. Step 5: Solve for x
    x = 193,273,057.14/19,690.24
  6. Step 6: Final answer
    x = 9,815.68

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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.