Home / 28,379.08-42,576.86-11,736.04

Finding the Fourth Proportional to 28,379.08, 42,576.86 and 11,736.04

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Solution

The fourth proportional to 28,379.08, 42,576.86 and 11,736.04 is: 17,607.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.08 : 42,576.86 = 11,736.04 : x
  2. Step 2: Convert to fraction form
    28,379.08/42,576.86 = 11,736.04/x
  3. Step 3: Cross multiply
    28,379.08x = 42,576.86 × 11,736.04
  4. Step 4: Simplify right side
    28,379.08x = 499,683,732.03
  5. Step 5: Solve for x
    x = 499,683,732.03/28,379.08
  6. Step 6: Final answer
    x = 17,607.47

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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.