Home / 38,518.92-57,778.20-12,225.72

Finding the Fourth Proportional to 38,518.92, 57,778.20 and 12,225.72

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Solution

The fourth proportional to 38,518.92, 57,778.20 and 12,225.72 is: 18,338.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,518.92 : 57,778.20 = 12,225.72 : x
  2. Step 2: Convert to fraction form
    38,518.92/57,778.20 = 12,225.72/x
  3. Step 3: Cross multiply
    38,518.92x = 57,778.20 × 12,225.72
  4. Step 4: Simplify right side
    38,518.92x = 706,380,095.30
  5. Step 5: Solve for x
    x = 706,380,095.30/38,518.92
  6. Step 6: Final answer
    x = 18,338.52

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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.