Home / 19,984.56-29,945.72-11,643.96

Finding the Fourth Proportional to 19,984.56, 29,945.72 and 11,643.96

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Solution

The fourth proportional to 19,984.56, 29,945.72 and 11,643.96 is: 17,447.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,984.56 : 29,945.72 = 11,643.96 : x
  2. Step 2: Convert to fraction form
    19,984.56/29,945.72 = 11,643.96/x
  3. Step 3: Cross multiply
    19,984.56x = 29,945.72 × 11,643.96
  4. Step 4: Simplify right side
    19,984.56x = 348,686,765.85
  5. Step 5: Solve for x
    x = 348,686,765.85/19,984.56
  6. Step 6: Final answer
    x = 17,447.81

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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.