Home / 21,644.16-29,868.78-12,083.48

Finding the Fourth Proportional to 21,644.16, 29,868.78 and 12,083.48

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Solution

The fourth proportional to 21,644.16, 29,868.78 and 12,083.48 is: 16,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.16 : 29,868.78 = 12,083.48 : x
  2. Step 2: Convert to fraction form
    21,644.16/29,868.78 = 12,083.48/x
  3. Step 3: Cross multiply
    21,644.16x = 29,868.78 × 12,083.48
  4. Step 4: Simplify right side
    21,644.16x = 360,918,805.75
  5. Step 5: Solve for x
    x = 360,918,805.75/21,644.16
  6. Step 6: Final answer
    x = 16,675.11

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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.