Home / 19,930.60-29,896.74-7,449.37

Finding the Fourth Proportional to 19,930.60, 29,896.74 and 7,449.37

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Solution

The fourth proportional to 19,930.60, 29,896.74 and 7,449.37 is: 11,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.60 : 29,896.74 = 7,449.37 : x
  2. Step 2: Convert to fraction form
    19,930.60/29,896.74 = 7,449.37/x
  3. Step 3: Cross multiply
    19,930.60x = 29,896.74 × 7,449.37
  4. Step 4: Simplify right side
    19,930.60x = 222,711,878.05
  5. Step 5: Solve for x
    x = 222,711,878.05/19,930.60
  6. Step 6: Final answer
    x = 11,174.37

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1.5x scale

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.