Home / 19,101.96-28,643.55-11,219.82

Finding the Fourth Proportional to 19,101.96, 28,643.55 and 11,219.82

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Solution

The fourth proportional to 19,101.96, 28,643.55 and 11,219.82 is: 16,824.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.96 : 28,643.55 = 11,219.82 : x
  2. Step 2: Convert to fraction form
    19,101.96/28,643.55 = 11,219.82/x
  3. Step 3: Cross multiply
    19,101.96x = 28,643.55 × 11,219.82
  4. Step 4: Simplify right side
    19,101.96x = 321,375,475.16
  5. Step 5: Solve for x
    x = 321,375,475.16/19,101.96
  6. Step 6: Final answer
    x = 16,824.21

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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.