Home / 26,861.81-40,310.21-10,221.98

Finding the Fourth Proportional to 26,861.81, 40,310.21 and 10,221.98

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Solution

The fourth proportional to 26,861.81, 40,310.21 and 10,221.98 is: 15,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.81 : 40,310.21 = 10,221.98 : x
  2. Step 2: Convert to fraction form
    26,861.81/40,310.21 = 10,221.98/x
  3. Step 3: Cross multiply
    26,861.81x = 40,310.21 × 10,221.98
  4. Step 4: Simplify right side
    26,861.81x = 412,049,907.75
  5. Step 5: Solve for x
    x = 412,049,907.75/26,861.81
  6. Step 6: Final answer
    x = 15,339.62

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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.