Home / 21,245.34-31,874.16-8,098.73

Finding the Fourth Proportional to 21,245.34, 31,874.16 and 8,098.73

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Solution

The fourth proportional to 21,245.34, 31,874.16 and 8,098.73 is: 12,150.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.34 : 31,874.16 = 8,098.73 : x
  2. Step 2: Convert to fraction form
    21,245.34/31,874.16 = 8,098.73/x
  3. Step 3: Cross multiply
    21,245.34x = 31,874.16 × 8,098.73
  4. Step 4: Simplify right side
    21,245.34x = 258,140,340.08
  5. Step 5: Solve for x
    x = 258,140,340.08/21,245.34
  6. Step 6: Final answer
    x = 12,150.45

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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.