Home / 21,538.56-32,311.12-6,745.84

Finding the Fourth Proportional to 21,538.56, 32,311.12 and 6,745.84

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Solution

The fourth proportional to 21,538.56, 32,311.12 and 6,745.84 is: 10,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538.56 : 32,311.12 = 6,745.84 : x
  2. Step 2: Convert to fraction form
    21,538.56/32,311.12 = 6,745.84/x
  3. Step 3: Cross multiply
    21,538.56x = 32,311.12 × 6,745.84
  4. Step 4: Simplify right side
    21,538.56x = 217,965,645.74
  5. Step 5: Solve for x
    x = 217,965,645.74/21,538.56
  6. Step 6: Final answer
    x = 10,119.79

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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.