Home / 19,319.36-28,974.49-5,276.05

Finding the Fourth Proportional to 19,319.36, 28,974.49 and 5,276.05

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Solution

The fourth proportional to 19,319.36, 28,974.49 and 5,276.05 is: 7,912.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.36 : 28,974.49 = 5,276.05 : x
  2. Step 2: Convert to fraction form
    19,319.36/28,974.49 = 5,276.05/x
  3. Step 3: Cross multiply
    19,319.36x = 28,974.49 × 5,276.05
  4. Step 4: Simplify right side
    19,319.36x = 152,870,772.34
  5. Step 5: Solve for x
    x = 152,870,772.34/19,319.36
  6. Step 6: Final answer
    x = 7,912.83

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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.