Home / 19,922.18-29,876.30-5,878.48

Finding the Fourth Proportional to 19,922.18, 29,876.30 and 5,878.48

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Solution

The fourth proportional to 19,922.18, 29,876.30 and 5,878.48 is: 8,815.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,922.18 : 29,876.30 = 5,878.48 : x
  2. Step 2: Convert to fraction form
    19,922.18/29,876.30 = 5,878.48/x
  3. Step 3: Cross multiply
    19,922.18x = 29,876.30 × 5,878.48
  4. Step 4: Simplify right side
    19,922.18x = 175,627,202.63
  5. Step 5: Solve for x
    x = 175,627,202.63/19,922.18
  6. Step 6: Final answer
    x = 8,815.66

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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.