Home / 19,800.45-29,690.96-7,319.97

Finding the Fourth Proportional to 19,800.45, 29,690.96 and 7,319.97

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Solution

The fourth proportional to 19,800.45, 29,690.96 and 7,319.97 is: 10,976.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.45 : 29,690.96 = 7,319.97 : x
  2. Step 2: Convert to fraction form
    19,800.45/29,690.96 = 7,319.97/x
  3. Step 3: Cross multiply
    19,800.45x = 29,690.96 × 7,319.97
  4. Step 4: Simplify right side
    19,800.45x = 217,336,899.87
  5. Step 5: Solve for x
    x = 217,336,899.87/19,800.45
  6. Step 6: Final answer
    x = 10,976.36

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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.