Home / 36,231.70-54,347.55-20,485.30

Finding the Fourth Proportional to 36,231.70, 54,347.55 and 20,485.30

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Solution

The fourth proportional to 36,231.70, 54,347.55 and 20,485.30 is: 30,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,231.70 : 54,347.55 = 20,485.30 : x
  2. Step 2: Convert to fraction form
    36,231.70/54,347.55 = 20,485.30/x
  3. Step 3: Cross multiply
    36,231.70x = 54,347.55 × 20,485.30
  4. Step 4: Simplify right side
    36,231.70x = 1,113,325,866.02
  5. Step 5: Solve for x
    x = 1,113,325,866.02/36,231.70
  6. Step 6: Final answer
    x = 30,727.95

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Similar ratio
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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.