Home / 20,735.12-31,074.84-11,361.04

Finding the Fourth Proportional to 20,735.12, 31,074.84 and 11,361.04

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Solution

The fourth proportional to 20,735.12, 31,074.84 and 11,361.04 is: 17,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.12 : 31,074.84 = 11,361.04 : x
  2. Step 2: Convert to fraction form
    20,735.12/31,074.84 = 11,361.04/x
  3. Step 3: Cross multiply
    20,735.12x = 31,074.84 × 11,361.04
  4. Step 4: Simplify right side
    20,735.12x = 353,042,500.23
  5. Step 5: Solve for x
    x = 353,042,500.23/20,735.12
  6. Step 6: Final answer
    x = 17,026.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.