Home / 21,240.62-31,861.23-8,093.71

Finding the Fourth Proportional to 21,240.62, 31,861.23 and 8,093.71

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Solution

The fourth proportional to 21,240.62, 31,861.23 and 8,093.71 is: 12,140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.62 : 31,861.23 = 8,093.71 : x
  2. Step 2: Convert to fraction form
    21,240.62/31,861.23 = 8,093.71/x
  3. Step 3: Cross multiply
    21,240.62x = 31,861.23 × 8,093.71
  4. Step 4: Simplify right side
    21,240.62x = 257,875,555.86
  5. Step 5: Solve for x
    x = 257,875,555.86/21,240.62
  6. Step 6: Final answer
    x = 12,140.68

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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.