Home / 21,084.84-29,092.37-12,589.97

Finding the Fourth Proportional to 21,084.84, 29,092.37 and 12,589.97

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Solution

The fourth proportional to 21,084.84, 29,092.37 and 12,589.97 is: 17,371.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.84 : 29,092.37 = 12,589.97 : x
  2. Step 2: Convert to fraction form
    21,084.84/29,092.37 = 12,589.97/x
  3. Step 3: Cross multiply
    21,084.84x = 29,092.37 × 12,589.97
  4. Step 4: Simplify right side
    21,084.84x = 366,271,857.12
  5. Step 5: Solve for x
    x = 366,271,857.12/21,084.84
  6. Step 6: Final answer
    x = 17,371.34

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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.