Home / 21,245.73-29,318.60-11,554.94

Finding the Fourth Proportional to 21,245.73, 29,318.60 and 11,554.94

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Solution

The fourth proportional to 21,245.73, 29,318.60 and 11,554.94 is: 15,945.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.73 : 29,318.60 = 11,554.94 : x
  2. Step 2: Convert to fraction form
    21,245.73/29,318.60 = 11,554.94/x
  3. Step 3: Cross multiply
    21,245.73x = 29,318.60 × 11,554.94
  4. Step 4: Simplify right side
    21,245.73x = 338,774,663.88
  5. Step 5: Solve for x
    x = 338,774,663.88/21,245.73
  6. Step 6: Final answer
    x = 15,945.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.