Home / 19,893.14-29,822.09-12,878.54

Finding the Fourth Proportional to 19,893.14, 29,822.09 and 12,878.54

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Solution

The fourth proportional to 19,893.14, 29,822.09 and 12,878.54 is: 19,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,893.14 : 29,822.09 = 12,878.54 : x
  2. Step 2: Convert to fraction form
    19,893.14/29,822.09 = 12,878.54/x
  3. Step 3: Cross multiply
    19,893.14x = 29,822.09 × 12,878.54
  4. Step 4: Simplify right side
    19,893.14x = 384,064,765.45
  5. Step 5: Solve for x
    x = 384,064,765.45/19,893.14
  6. Step 6: Final answer
    x = 19,306.40

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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.