Home / 14,438.70-21,670.20-5,679.90

Finding the Fourth Proportional to 14,438.70, 21,670.20 and 5,679.90

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Solution

The fourth proportional to 14,438.70, 21,670.20 and 5,679.90 is: 8,524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.70 : 21,670.20 = 5,679.90 : x
  2. Step 2: Convert to fraction form
    14,438.70/21,670.20 = 5,679.90/x
  3. Step 3: Cross multiply
    14,438.70x = 21,670.20 × 5,679.90
  4. Step 4: Simplify right side
    14,438.70x = 123,084,568.98
  5. Step 5: Solve for x
    x = 123,084,568.98/14,438.70
  6. Step 6: Final answer
    x = 8,524.63

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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.