Home / 21,346.12-32,020.72-8,198.49

Finding the Fourth Proportional to 21,346.12, 32,020.72 and 8,198.49

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Solution

The fourth proportional to 21,346.12, 32,020.72 and 8,198.49 is: 12,298.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.12 : 32,020.72 = 8,198.49 : x
  2. Step 2: Convert to fraction form
    21,346.12/32,020.72 = 8,198.49/x
  3. Step 3: Cross multiply
    21,346.12x = 32,020.72 × 8,198.49
  4. Step 4: Simplify right side
    21,346.12x = 262,521,472.18
  5. Step 5: Solve for x
    x = 262,521,472.18/21,346.12
  6. Step 6: Final answer
    x = 12,298.32

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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.