Home / 19,880.81-29,821.17-5,089.73

Finding the Fourth Proportional to 19,880.81, 29,821.17 and 5,089.73

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Solution

The fourth proportional to 19,880.81, 29,821.17 and 5,089.73 is: 7,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,880.81 : 29,821.17 = 5,089.73 : x
  2. Step 2: Convert to fraction form
    19,880.81/29,821.17 = 5,089.73/x
  3. Step 3: Cross multiply
    19,880.81x = 29,821.17 × 5,089.73
  4. Step 4: Simplify right side
    19,880.81x = 151,781,554.48
  5. Step 5: Solve for x
    x = 151,781,554.48/19,880.81
  6. Step 6: Final answer
    x = 7,634.58

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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.