Home / 19,431.31-29,146.94-7,752.73

Finding the Fourth Proportional to 19,431.31, 29,146.94 and 7,752.73

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Solution

The fourth proportional to 19,431.31, 29,146.94 and 7,752.73 is: 11,629.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.31 : 29,146.94 = 7,752.73 : x
  2. Step 2: Convert to fraction form
    19,431.31/29,146.94 = 7,752.73/x
  3. Step 3: Cross multiply
    19,431.31x = 29,146.94 × 7,752.73
  4. Step 4: Simplify right side
    19,431.31x = 225,968,411.96
  5. Step 5: Solve for x
    x = 225,968,411.96/19,431.31
  6. Step 6: Final answer
    x = 11,629.09

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Similar ratio
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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.