Home / 28,756.62-39,684.09-16,181.37

Finding the Fourth Proportional to 28,756.62, 39,684.09 and 16,181.37

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Solution

The fourth proportional to 28,756.62, 39,684.09 and 16,181.37 is: 22,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.62 : 39,684.09 = 16,181.37 : x
  2. Step 2: Convert to fraction form
    28,756.62/39,684.09 = 16,181.37/x
  3. Step 3: Cross multiply
    28,756.62x = 39,684.09 × 16,181.37
  4. Step 4: Simplify right side
    28,756.62x = 642,142,943.40
  5. Step 5: Solve for x
    x = 642,142,943.40/28,756.62
  6. Step 6: Final answer
    x = 22,330.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.