Home / 20,082.89-27,714.61-11,130.57

Finding the Fourth Proportional to 20,082.89, 27,714.61 and 11,130.57

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Solution

The fourth proportional to 20,082.89, 27,714.61 and 11,130.57 is: 15,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.89 : 27,714.61 = 11,130.57 : x
  2. Step 2: Convert to fraction form
    20,082.89/27,714.61 = 11,130.57/x
  3. Step 3: Cross multiply
    20,082.89x = 27,714.61 × 11,130.57
  4. Step 4: Simplify right side
    20,082.89x = 308,479,406.63
  5. Step 5: Solve for x
    x = 308,479,406.63/20,082.89
  6. Step 6: Final answer
    x = 15,360.31

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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.