Home / 28,235.82-42,357.41-8,516.37

Finding the Fourth Proportional to 28,235.82, 42,357.41 and 8,516.37

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Solution

The fourth proportional to 28,235.82, 42,357.41 and 8,516.37 is: 12,775.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,235.82 : 42,357.41 = 8,516.37 : x
  2. Step 2: Convert to fraction form
    28,235.82/42,357.41 = 8,516.37/x
  3. Step 3: Cross multiply
    28,235.82x = 42,357.41 × 8,516.37
  4. Step 4: Simplify right side
    28,235.82x = 360,731,397.09
  5. Step 5: Solve for x
    x = 360,731,397.09/28,235.82
  6. Step 6: Final answer
    x = 12,775.67

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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.