Home / 19,850.64-29,787.63-7,379.43

Finding the Fourth Proportional to 19,850.64, 29,787.63 and 7,379.43

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Solution

The fourth proportional to 19,850.64, 29,787.63 and 7,379.43 is: 11,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,850.64 : 29,787.63 = 7,379.43 : x
  2. Step 2: Convert to fraction form
    19,850.64/29,787.63 = 7,379.43/x
  3. Step 3: Cross multiply
    19,850.64x = 29,787.63 × 7,379.43
  4. Step 4: Simplify right side
    19,850.64x = 219,815,581.51
  5. Step 5: Solve for x
    x = 219,815,581.51/19,850.64
  6. Step 6: Final answer
    x = 11,073.48

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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.