Home / 28,685.12-39,585.12-16,112

Finding the Fourth Proportional to 28,685.12, 39,585.12 and 16,112

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Solution

The fourth proportional to 28,685.12, 39,585.12 and 16,112 is: 22,234.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685.12 : 39,585.12 = 16,112 : x
  2. Step 2: Convert to fraction form
    28,685.12/39,585.12 = 16,112/x
  3. Step 3: Cross multiply
    28,685.12x = 39,585.12 × 16,112
  4. Step 4: Simplify right side
    28,685.12x = 637,795,453.44
  5. Step 5: Solve for x
    x = 637,795,453.44/28,685.12
  6. Step 6: Final answer
    x = 22,234.37

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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.