Home / 28,080.14-38,734.35-18,144.14

Finding the Fourth Proportional to 28,080.14, 38,734.35 and 18,144.14

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Solution

The fourth proportional to 28,080.14, 38,734.35 and 18,144.14 is: 25,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.14 : 38,734.35 = 18,144.14 : x
  2. Step 2: Convert to fraction form
    28,080.14/38,734.35 = 18,144.14/x
  3. Step 3: Cross multiply
    28,080.14x = 38,734.35 × 18,144.14
  4. Step 4: Simplify right side
    28,080.14x = 702,801,469.21
  5. Step 5: Solve for x
    x = 702,801,469.21/28,080.14
  6. Step 6: Final answer
    x = 25,028.42

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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.