Home / 19,922.39-29,876.61-5,878.69

Finding the Fourth Proportional to 19,922.39, 29,876.61 and 5,878.69

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Solution

The fourth proportional to 19,922.39, 29,876.61 and 5,878.69 is: 8,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.39 : 29,876.61 = 5,878.69 : x
  2. Step 2: Convert to fraction form
    19,922.39/29,876.61 = 5,878.69/x
  3. Step 3: Cross multiply
    19,922.39x = 29,876.61 × 5,878.69
  4. Step 4: Simplify right side
    19,922.39x = 175,635,328.44
  5. Step 5: Solve for x
    x = 175,635,328.44/19,922.39
  6. Step 6: Final answer
    x = 8,815.98

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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.