Home / 20,085.11-27,714.91-11,132.54

Finding the Fourth Proportional to 20,085.11, 27,714.91 and 11,132.54

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Solution

The fourth proportional to 20,085.11, 27,714.91 and 11,132.54 is: 15,361.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.11 : 27,714.91 = 11,132.54 : x
  2. Step 2: Convert to fraction form
    20,085.11/27,714.91 = 11,132.54/x
  3. Step 3: Cross multiply
    20,085.11x = 27,714.91 × 11,132.54
  4. Step 4: Simplify right side
    20,085.11x = 308,537,302.57
  5. Step 5: Solve for x
    x = 308,537,302.57/20,085.11
  6. Step 6: Final answer
    x = 15,361.49

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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.