Home / 19,211.50-28,819.14-5,360.50

Finding the Fourth Proportional to 19,211.50, 28,819.14 and 5,360.50

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Solution

The fourth proportional to 19,211.50, 28,819.14 and 5,360.50 is: 8,041.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,211.50 : 28,819.14 = 5,360.50 : x
  2. Step 2: Convert to fraction form
    19,211.50/28,819.14 = 5,360.50/x
  3. Step 3: Cross multiply
    19,211.50x = 28,819.14 × 5,360.50
  4. Step 4: Simplify right side
    19,211.50x = 154,484,999.97
  5. Step 5: Solve for x
    x = 154,484,999.97/19,211.50
  6. Step 6: Final answer
    x = 8,041.28

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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.