Home / 38,949.35-58,431.88-12,299.50

Finding the Fourth Proportional to 38,949.35, 58,431.88 and 12,299.50

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Solution

The fourth proportional to 38,949.35, 58,431.88 and 12,299.50 is: 18,451.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,949.35 : 58,431.88 = 12,299.50 : x
  2. Step 2: Convert to fraction form
    38,949.35/58,431.88 = 12,299.50/x
  3. Step 3: Cross multiply
    38,949.35x = 58,431.88 × 12,299.50
  4. Step 4: Simplify right side
    38,949.35x = 718,682,938.81
  5. Step 5: Solve for x
    x = 718,682,938.81/38,949.35
  6. Step 6: Final answer
    x = 18,451.73

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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.