Home / 19,431.83-29,147.75-7,753.25

Finding the Fourth Proportional to 19,431.83, 29,147.75 and 7,753.25

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Solution

The fourth proportional to 19,431.83, 29,147.75 and 7,753.25 is: 11,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.83 : 29,147.75 = 7,753.25 : x
  2. Step 2: Convert to fraction form
    19,431.83/29,147.75 = 7,753.25/x
  3. Step 3: Cross multiply
    19,431.83x = 29,147.75 × 7,753.25
  4. Step 4: Simplify right side
    19,431.83x = 225,989,792.69
  5. Step 5: Solve for x
    x = 225,989,792.69/19,431.83
  6. Step 6: Final answer
    x = 11,629.88

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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.