Home / 38,910.08-58,367.12-18,937.96

Finding the Fourth Proportional to 38,910.08, 58,367.12 and 18,937.96

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Solution

The fourth proportional to 38,910.08, 58,367.12 and 18,937.96 is: 28,407.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910.08 : 58,367.12 = 18,937.96 : x
  2. Step 2: Convert to fraction form
    38,910.08/58,367.12 = 18,937.96/x
  3. Step 3: Cross multiply
    38,910.08x = 58,367.12 × 18,937.96
  4. Step 4: Simplify right side
    38,910.08x = 1,105,354,183.88
  5. Step 5: Solve for x
    x = 1,105,354,183.88/38,910.08
  6. Step 6: Final answer
    x = 28,407.91

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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.