Home / 20,100.34-27,736.18-11,147.01

Finding the Fourth Proportional to 20,100.34, 27,736.18 and 11,147.01

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Solution

The fourth proportional to 20,100.34, 27,736.18 and 11,147.01 is: 15,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.34 : 27,736.18 = 11,147.01 : x
  2. Step 2: Convert to fraction form
    20,100.34/27,736.18 = 11,147.01/x
  3. Step 3: Cross multiply
    20,100.34x = 27,736.18 × 11,147.01
  4. Step 4: Simplify right side
    20,100.34x = 309,175,475.82
  5. Step 5: Solve for x
    x = 309,175,475.82/20,100.34
  6. Step 6: Final answer
    x = 15,381.60

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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.