Home / 21,726.98-29,982.97-12,295.30

Finding the Fourth Proportional to 21,726.98, 29,982.97 and 12,295.30

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Solution

The fourth proportional to 21,726.98, 29,982.97 and 12,295.30 is: 16,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,726.98 : 29,982.97 = 12,295.30 : x
  2. Step 2: Convert to fraction form
    21,726.98/29,982.97 = 12,295.30/x
  3. Step 3: Cross multiply
    21,726.98x = 29,982.97 × 12,295.30
  4. Step 4: Simplify right side
    21,726.98x = 368,649,611.04
  5. Step 5: Solve for x
    x = 368,649,611.04/21,726.98
  6. Step 6: Final answer
    x = 16,967.37

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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.