Home / 16,815.48-25,164.68-13,817.96

Finding the Fourth Proportional to 16,815.48, 25,164.68 and 13,817.96

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Solution

The fourth proportional to 16,815.48, 25,164.68 and 13,817.96 is: 20,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.48 : 25,164.68 = 13,817.96 : x
  2. Step 2: Convert to fraction form
    16,815.48/25,164.68 = 13,817.96/x
  3. Step 3: Cross multiply
    16,815.48x = 25,164.68 × 13,817.96
  4. Step 4: Simplify right side
    16,815.48x = 347,724,541.65
  5. Step 5: Solve for x
    x = 347,724,541.65/16,815.48
  6. Step 6: Final answer
    x = 20,678.84

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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.