Home / 21,467.92-29,620.12-12,391.06

Finding the Fourth Proportional to 21,467.92, 29,620.12 and 12,391.06

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Solution

The fourth proportional to 21,467.92, 29,620.12 and 12,391.06 is: 17,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,467.92 : 29,620.12 = 12,391.06 : x
  2. Step 2: Convert to fraction form
    21,467.92/29,620.12 = 12,391.06/x
  3. Step 3: Cross multiply
    21,467.92x = 29,620.12 × 12,391.06
  4. Step 4: Simplify right side
    21,467.92x = 367,024,684.13
  5. Step 5: Solve for x
    x = 367,024,684.13/21,467.92
  6. Step 6: Final answer
    x = 17,096.42

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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.