Home / 38,815.92-58,235.22-12,520.08

Finding the Fourth Proportional to 38,815.92, 58,235.22 and 12,520.08

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Solution

The fourth proportional to 38,815.92, 58,235.22 and 12,520.08 is: 18,783.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,815.92 : 58,235.22 = 12,520.08 : x
  2. Step 2: Convert to fraction form
    38,815.92/58,235.22 = 12,520.08/x
  3. Step 3: Cross multiply
    38,815.92x = 58,235.22 × 12,520.08
  4. Step 4: Simplify right side
    38,815.92x = 729,109,613.22
  5. Step 5: Solve for x
    x = 729,109,613.22/38,815.92
  6. Step 6: Final answer
    x = 18,783.78

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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.