Home / 19,211.96-28,821.42-9,351.24

Finding the Fourth Proportional to 19,211.96, 28,821.42 and 9,351.24

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Solution

The fourth proportional to 19,211.96, 28,821.42 and 9,351.24 is: 14,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.96 : 28,821.42 = 9,351.24 : x
  2. Step 2: Convert to fraction form
    19,211.96/28,821.42 = 9,351.24/x
  3. Step 3: Cross multiply
    19,211.96x = 28,821.42 × 9,351.24
  4. Step 4: Simplify right side
    19,211.96x = 269,516,015.56
  5. Step 5: Solve for x
    x = 269,516,015.56/19,211.96
  6. Step 6: Final answer
    x = 14,028.55

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1.5x scale

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.