Home / 20,370.19-30,568.84-8,372.18

Finding the Fourth Proportional to 20,370.19, 30,568.84 and 8,372.18

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Solution

The fourth proportional to 20,370.19, 30,568.84 and 8,372.18 is: 12,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.19 : 30,568.84 = 8,372.18 : x
  2. Step 2: Convert to fraction form
    20,370.19/30,568.84 = 8,372.18/x
  3. Step 3: Cross multiply
    20,370.19x = 30,568.84 × 8,372.18
  4. Step 4: Simplify right side
    20,370.19x = 255,927,771.73
  5. Step 5: Solve for x
    x = 255,927,771.73/20,370.19
  6. Step 6: Final answer
    x = 12,563.84

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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.