Home / 19,880.96-29,821.41-5,089.88

Finding the Fourth Proportional to 19,880.96, 29,821.41 and 5,089.88

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Solution

The fourth proportional to 19,880.96, 29,821.41 and 5,089.88 is: 7,634.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.96 : 29,821.41 = 5,089.88 : x
  2. Step 2: Convert to fraction form
    19,880.96/29,821.41 = 5,089.88/x
  3. Step 3: Cross multiply
    19,880.96x = 29,821.41 × 5,089.88
  4. Step 4: Simplify right side
    19,880.96x = 151,787,398.33
  5. Step 5: Solve for x
    x = 151,787,398.33/19,880.96
  6. Step 6: Final answer
    x = 7,634.81

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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.