Home / 20,082.90-27,714.46-11,130.55

Finding the Fourth Proportional to 20,082.90, 27,714.46 and 11,130.55

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Solution

The fourth proportional to 20,082.90, 27,714.46 and 11,130.55 is: 15,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.90 : 27,714.46 = 11,130.55 : x
  2. Step 2: Convert to fraction form
    20,082.90/27,714.46 = 11,130.55/x
  3. Step 3: Cross multiply
    20,082.90x = 27,714.46 × 11,130.55
  4. Step 4: Simplify right side
    20,082.90x = 308,477,182.75
  5. Step 5: Solve for x
    x = 308,477,182.75/20,082.90
  6. Step 6: Final answer
    x = 15,360.19

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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.