Home / 19,211.28-28,819.32-6,061.72

Finding the Fourth Proportional to 19,211.28, 28,819.32 and 6,061.72

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Solution

The fourth proportional to 19,211.28, 28,819.32 and 6,061.72 is: 9,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.28 : 28,819.32 = 6,061.72 : x
  2. Step 2: Convert to fraction form
    19,211.28/28,819.32 = 6,061.72/x
  3. Step 3: Cross multiply
    19,211.28x = 28,819.32 × 6,061.72
  4. Step 4: Simplify right side
    19,211.28x = 174,694,648.43
  5. Step 5: Solve for x
    x = 174,694,648.43/19,211.28
  6. Step 6: Final answer
    x = 9,093.34

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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.