Home / 16,821.50-25,231.77-5,133.02

Finding the Fourth Proportional to 16,821.50, 25,231.77 and 5,133.02

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Solution

The fourth proportional to 16,821.50, 25,231.77 and 5,133.02 is: 7,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,821.50 : 25,231.77 = 5,133.02 : x
  2. Step 2: Convert to fraction form
    16,821.50/25,231.77 = 5,133.02/x
  3. Step 3: Cross multiply
    16,821.50x = 25,231.77 × 5,133.02
  4. Step 4: Simplify right side
    16,821.50x = 129,515,180.05
  5. Step 5: Solve for x
    x = 129,515,180.05/16,821.50
  6. Step 6: Final answer
    x = 7,699.38

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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.