Home / 27,211.80-40,815.30-7,488.60

Finding the Fourth Proportional to 27,211.80, 40,815.30 and 7,488.60

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Solution

The fourth proportional to 27,211.80, 40,815.30 and 7,488.60 is: 11,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,211.80 : 40,815.30 = 7,488.60 : x
  2. Step 2: Convert to fraction form
    27,211.80/40,815.30 = 7,488.60/x
  3. Step 3: Cross multiply
    27,211.80x = 40,815.30 × 7,488.60
  4. Step 4: Simplify right side
    27,211.80x = 305,649,455.58
  5. Step 5: Solve for x
    x = 305,649,455.58/27,211.80
  6. Step 6: Final answer
    x = 11,232.24

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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.