Home / 20,082.89-27,714.59-11,130.59

Finding the Fourth Proportional to 20,082.89, 27,714.59 and 11,130.59

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Solution

The fourth proportional to 20,082.89, 27,714.59 and 11,130.59 is: 15,360.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.89 : 27,714.59 = 11,130.59 : x
  2. Step 2: Convert to fraction form
    20,082.89/27,714.59 = 11,130.59/x
  3. Step 3: Cross multiply
    20,082.89x = 27,714.59 × 11,130.59
  4. Step 4: Simplify right side
    20,082.89x = 308,479,738.31
  5. Step 5: Solve for x
    x = 308,479,738.31/20,082.89
  6. Step 6: Final answer
    x = 15,360.33

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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.