Home / 19,193.67-28,788.48-5,155.17

Finding the Fourth Proportional to 19,193.67, 28,788.48 and 5,155.17

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Solution

The fourth proportional to 19,193.67, 28,788.48 and 5,155.17 is: 7,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,193.67 : 28,788.48 = 5,155.17 : x
  2. Step 2: Convert to fraction form
    19,193.67/28,788.48 = 5,155.17/x
  3. Step 3: Cross multiply
    19,193.67x = 28,788.48 × 5,155.17
  4. Step 4: Simplify right side
    19,193.67x = 148,409,508.44
  5. Step 5: Solve for x
    x = 148,409,508.44/19,193.67
  6. Step 6: Final answer
    x = 7,732.21

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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.