Home / 21,346.21-32,020.85-8,198.58

Finding the Fourth Proportional to 21,346.21, 32,020.85 and 8,198.58

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Solution

The fourth proportional to 21,346.21, 32,020.85 and 8,198.58 is: 12,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.21 : 32,020.85 = 8,198.58 : x
  2. Step 2: Convert to fraction form
    21,346.21/32,020.85 = 8,198.58/x
  3. Step 3: Cross multiply
    21,346.21x = 32,020.85 × 8,198.58
  4. Step 4: Simplify right side
    21,346.21x = 262,525,500.39
  5. Step 5: Solve for x
    x = 262,525,500.39/21,346.21
  6. Step 6: Final answer
    x = 12,298.46

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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.