Home / 36,021.40-54,080.70-28,634.20

Finding the Fourth Proportional to 36,021.40, 54,080.70 and 28,634.20

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Solution

The fourth proportional to 36,021.40, 54,080.70 and 28,634.20 is: 42,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,021.40 : 54,080.70 = 28,634.20 : x
  2. Step 2: Convert to fraction form
    36,021.40/54,080.70 = 28,634.20/x
  3. Step 3: Cross multiply
    36,021.40x = 54,080.70 × 28,634.20
  4. Step 4: Simplify right side
    36,021.40x = 1,548,557,579.94
  5. Step 5: Solve for x
    x = 1,548,557,579.94/36,021.40
  6. Step 6: Final answer
    x = 42,989.93

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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.