Home / 21,554.73-29,745.24-12,123.29

Finding the Fourth Proportional to 21,554.73, 29,745.24 and 12,123.29

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Solution

The fourth proportional to 21,554.73, 29,745.24 and 12,123.29 is: 16,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.73 : 29,745.24 = 12,123.29 : x
  2. Step 2: Convert to fraction form
    21,554.73/29,745.24 = 12,123.29/x
  3. Step 3: Cross multiply
    21,554.73x = 29,745.24 × 12,123.29
  4. Step 4: Simplify right side
    21,554.73x = 360,610,245.00
  5. Step 5: Solve for x
    x = 360,610,245.00/21,554.73
  6. Step 6: Final answer
    x = 16,729.98

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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.