Home / 20,083.35-27,714.29-11,131.67

Finding the Fourth Proportional to 20,083.35, 27,714.29 and 11,131.67

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Solution

The fourth proportional to 20,083.35, 27,714.29 and 11,131.67 is: 15,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.35 : 27,714.29 = 11,131.67 : x
  2. Step 2: Convert to fraction form
    20,083.35/27,714.29 = 11,131.67/x
  3. Step 3: Cross multiply
    20,083.35x = 27,714.29 × 11,131.67
  4. Step 4: Simplify right side
    20,083.35x = 308,506,136.33
  5. Step 5: Solve for x
    x = 308,506,136.33/20,083.35
  6. Step 6: Final answer
    x = 15,361.29

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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.