Home / 27,211.92-40,803.30-12,412.86

Finding the Fourth Proportional to 27,211.92, 40,803.30 and 12,412.86

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Solution

The fourth proportional to 27,211.92, 40,803.30 and 12,412.86 is: 18,612.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,211.92 : 40,803.30 = 12,412.86 : x
  2. Step 2: Convert to fraction form
    27,211.92/40,803.30 = 12,412.86/x
  3. Step 3: Cross multiply
    27,211.92x = 40,803.30 × 12,412.86
  4. Step 4: Simplify right side
    27,211.92x = 506,485,650.44
  5. Step 5: Solve for x
    x = 506,485,650.44/27,211.92
  6. Step 6: Final answer
    x = 18,612.64

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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.