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Finding the Fourth Proportional to 18,841.55, 28,240.79 and 10,525.41

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Solution

The fourth proportional to 18,841.55, 28,240.79 and 10,525.41 is: 15,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841.55 : 28,240.79 = 10,525.41 : x
  2. Step 2: Convert to fraction form
    18,841.55/28,240.79 = 10,525.41/x
  3. Step 3: Cross multiply
    18,841.55x = 28,240.79 × 10,525.41
  4. Step 4: Simplify right side
    18,841.55x = 297,245,840.85
  5. Step 5: Solve for x
    x = 297,245,840.85/18,841.55
  6. Step 6: Final answer
    x = 15,776.09

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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.