Home / 30,845.21-42,565.10-18,096.62

Finding the Fourth Proportional to 30,845.21, 42,565.10 and 18,096.62

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Solution

The fourth proportional to 30,845.21, 42,565.10 and 18,096.62 is: 24,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,845.21 : 42,565.10 = 18,096.62 : x
  2. Step 2: Convert to fraction form
    30,845.21/42,565.10 = 18,096.62/x
  3. Step 3: Cross multiply
    30,845.21x = 42,565.10 × 18,096.62
  4. Step 4: Simplify right side
    30,845.21x = 770,284,136.65
  5. Step 5: Solve for x
    x = 770,284,136.65/30,845.21
  6. Step 6: Final answer
    x = 24,972.57

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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.