Home / 28,091.42-42,137.12-8,369.46

Finding the Fourth Proportional to 28,091.42, 42,137.12 and 8,369.46

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Solution

The fourth proportional to 28,091.42, 42,137.12 and 8,369.46 is: 12,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.42 : 42,137.12 = 8,369.46 : x
  2. Step 2: Convert to fraction form
    28,091.42/42,137.12 = 8,369.46/x
  3. Step 3: Cross multiply
    28,091.42x = 42,137.12 × 8,369.46
  4. Step 4: Simplify right side
    28,091.42x = 352,664,940.36
  5. Step 5: Solve for x
    x = 352,664,940.36/28,091.42
  6. Step 6: Final answer
    x = 12,554.19

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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.