Home / 38,478.60-57,717.90-12,183.30

Finding the Fourth Proportional to 38,478.60, 57,717.90 and 12,183.30

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Solution

The fourth proportional to 38,478.60, 57,717.90 and 12,183.30 is: 18,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.60 : 57,717.90 = 12,183.30 : x
  2. Step 2: Convert to fraction form
    38,478.60/57,717.90 = 12,183.30/x
  3. Step 3: Cross multiply
    38,478.60x = 57,717.90 × 12,183.30
  4. Step 4: Simplify right side
    38,478.60x = 703,194,491.07
  5. Step 5: Solve for x
    x = 703,194,491.07/38,478.60
  6. Step 6: Final answer
    x = 18,274.95

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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.