Home / 21,183.21-29,234.04-12,802.41

Finding the Fourth Proportional to 21,183.21, 29,234.04 and 12,802.41

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Solution

The fourth proportional to 21,183.21, 29,234.04 and 12,802.41 is: 17,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.21 : 29,234.04 = 12,802.41 : x
  2. Step 2: Convert to fraction form
    21,183.21/29,234.04 = 12,802.41/x
  3. Step 3: Cross multiply
    21,183.21x = 29,234.04 × 12,802.41
  4. Step 4: Simplify right side
    21,183.21x = 374,266,166.04
  5. Step 5: Solve for x
    x = 374,266,166.04/21,183.21
  6. Step 6: Final answer
    x = 17,668.06

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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.