Home / 21,341.44-31,982.39-16,640.02

Finding the Fourth Proportional to 21,341.44, 31,982.39 and 16,640.02

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Solution

The fourth proportional to 21,341.44, 31,982.39 and 16,640.02 is: 24,936.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341.44 : 31,982.39 = 16,640.02 : x
  2. Step 2: Convert to fraction form
    21,341.44/31,982.39 = 16,640.02/x
  3. Step 3: Cross multiply
    21,341.44x = 31,982.39 × 16,640.02
  4. Step 4: Simplify right side
    21,341.44x = 532,187,366.14
  5. Step 5: Solve for x
    x = 532,187,366.14/21,341.44
  6. Step 6: Final answer
    x = 24,936.81

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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.