Home / 19,922.19-29,876.31-5,878.49

Finding the Fourth Proportional to 19,922.19, 29,876.31 and 5,878.49

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Solution

The fourth proportional to 19,922.19, 29,876.31 and 5,878.49 is: 8,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.19 : 29,876.31 = 5,878.49 : x
  2. Step 2: Convert to fraction form
    19,922.19/29,876.31 = 5,878.49/x
  3. Step 3: Cross multiply
    19,922.19x = 29,876.31 × 5,878.49
  4. Step 4: Simplify right side
    19,922.19x = 175,627,410.80
  5. Step 5: Solve for x
    x = 175,627,410.80/19,922.19
  6. Step 6: Final answer
    x = 8,815.67

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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.