Home / 21,738.36-29,883.44-18,702.32

Finding the Fourth Proportional to 21,738.36, 29,883.44 and 18,702.32

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Solution

The fourth proportional to 21,738.36, 29,883.44 and 18,702.32 is: 25,709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.36 : 29,883.44 = 18,702.32 : x
  2. Step 2: Convert to fraction form
    21,738.36/29,883.44 = 18,702.32/x
  3. Step 3: Cross multiply
    21,738.36x = 29,883.44 × 18,702.32
  4. Step 4: Simplify right side
    21,738.36x = 558,889,657.58
  5. Step 5: Solve for x
    x = 558,889,657.58/21,738.36
  6. Step 6: Final answer
    x = 25,709.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.