Home / 28,091.10-42,136.81-8,369.83

Finding the Fourth Proportional to 28,091.10, 42,136.81 and 8,369.83

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Solution

The fourth proportional to 28,091.10, 42,136.81 and 8,369.83 is: 12,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.10 : 42,136.81 = 8,369.83 : x
  2. Step 2: Convert to fraction form
    28,091.10/42,136.81 = 8,369.83/x
  3. Step 3: Cross multiply
    28,091.10x = 42,136.81 × 8,369.83
  4. Step 4: Simplify right side
    28,091.10x = 352,677,968.19
  5. Step 5: Solve for x
    x = 352,677,968.19/28,091.10
  6. Step 6: Final answer
    x = 12,554.79

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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.