Home / 21,554.84-29,745.36-12,125

Finding the Fourth Proportional to 21,554.84, 29,745.36 and 12,125

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Solution

The fourth proportional to 21,554.84, 29,745.36 and 12,125 is: 16,732.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.84 : 29,745.36 = 12,125 : x
  2. Step 2: Convert to fraction form
    21,554.84/29,745.36 = 12,125/x
  3. Step 3: Cross multiply
    21,554.84x = 29,745.36 × 12,125
  4. Step 4: Simplify right side
    21,554.84x = 360,662,490
  5. Step 5: Solve for x
    x = 360,662,490/21,554.84
  6. Step 6: Final answer
    x = 16,732.32

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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.