Home / 19,134.88-28,705.20-6,820

Finding the Fourth Proportional to 19,134.88, 28,705.20 and 6,820

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Solution

The fourth proportional to 19,134.88, 28,705.20 and 6,820 is: 10,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,134.88 : 28,705.20 = 6,820 : x
  2. Step 2: Convert to fraction form
    19,134.88/28,705.20 = 6,820/x
  3. Step 3: Cross multiply
    19,134.88x = 28,705.20 × 6,820
  4. Step 4: Simplify right side
    19,134.88x = 195,769,464
  5. Step 5: Solve for x
    x = 195,769,464/19,134.88
  6. Step 6: Final answer
    x = 10,231.03

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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.