Home / 14,489.98-21,731.45-3,960.05

Finding the Fourth Proportional to 14,489.98, 21,731.45 and 3,960.05

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Solution

The fourth proportional to 14,489.98, 21,731.45 and 3,960.05 is: 5,939.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.98 : 21,731.45 = 3,960.05 : x
  2. Step 2: Convert to fraction form
    14,489.98/21,731.45 = 3,960.05/x
  3. Step 3: Cross multiply
    14,489.98x = 21,731.45 × 3,960.05
  4. Step 4: Simplify right side
    14,489.98x = 86,057,529.82
  5. Step 5: Solve for x
    x = 86,057,529.82/14,489.98
  6. Step 6: Final answer
    x = 5,939.11

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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.