Home / 27,121.51-40,683.21-8,399.85

Finding the Fourth Proportional to 27,121.51, 40,683.21 and 8,399.85

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Solution

The fourth proportional to 27,121.51, 40,683.21 and 8,399.85 is: 12,600.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.51 : 40,683.21 = 8,399.85 : x
  2. Step 2: Convert to fraction form
    27,121.51/40,683.21 = 8,399.85/x
  3. Step 3: Cross multiply
    27,121.51x = 40,683.21 × 8,399.85
  4. Step 4: Simplify right side
    27,121.51x = 341,732,861.52
  5. Step 5: Solve for x
    x = 341,732,861.52/27,121.51
  6. Step 6: Final answer
    x = 12,600.07

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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.