Home / 28,720.86-43,063.53-11,170.14

Finding the Fourth Proportional to 28,720.86, 43,063.53 and 11,170.14

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Solution

The fourth proportional to 28,720.86, 43,063.53 and 11,170.14 is: 16,748.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,720.86 : 43,063.53 = 11,170.14 : x
  2. Step 2: Convert to fraction form
    28,720.86/43,063.53 = 11,170.14/x
  3. Step 3: Cross multiply
    28,720.86x = 43,063.53 × 11,170.14
  4. Step 4: Simplify right side
    28,720.86x = 481,025,658.99
  5. Step 5: Solve for x
    x = 481,025,658.99/28,720.86
  6. Step 6: Final answer
    x = 16,748.30

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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.