Home / 21,467.44-29,622.16-12,393.12

Finding the Fourth Proportional to 21,467.44, 29,622.16 and 12,393.12

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Solution

The fourth proportional to 21,467.44, 29,622.16 and 12,393.12 is: 17,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.44 : 29,622.16 = 12,393.12 : x
  2. Step 2: Convert to fraction form
    21,467.44/29,622.16 = 12,393.12/x
  3. Step 3: Cross multiply
    21,467.44x = 29,622.16 × 12,393.12
  4. Step 4: Simplify right side
    21,467.44x = 367,110,983.54
  5. Step 5: Solve for x
    x = 367,110,983.54/21,467.44
  6. Step 6: Final answer
    x = 17,100.83

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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.