Home / 20,838.07-31,324.84-16,723.17

Finding the Fourth Proportional to 20,838.07, 31,324.84 and 16,723.17

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Solution

The fourth proportional to 20,838.07, 31,324.84 and 16,723.17 is: 25,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,838.07 : 31,324.84 = 16,723.17 : x
  2. Step 2: Convert to fraction form
    20,838.07/31,324.84 = 16,723.17/x
  3. Step 3: Cross multiply
    20,838.07x = 31,324.84 × 16,723.17
  4. Step 4: Simplify right side
    20,838.07x = 523,850,676.80
  5. Step 5: Solve for x
    x = 523,850,676.80/20,838.07
  6. Step 6: Final answer
    x = 25,139.12

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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.