Home / 28,571.84-39,422.36-16,628

Finding the Fourth Proportional to 28,571.84, 39,422.36 and 16,628

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Solution

The fourth proportional to 28,571.84, 39,422.36 and 16,628 is: 22,942.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.84 : 39,422.36 = 16,628 : x
  2. Step 2: Convert to fraction form
    28,571.84/39,422.36 = 16,628/x
  3. Step 3: Cross multiply
    28,571.84x = 39,422.36 × 16,628
  4. Step 4: Simplify right side
    28,571.84x = 655,515,002.08
  5. Step 5: Solve for x
    x = 655,515,002.08/28,571.84
  6. Step 6: Final answer
    x = 22,942.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.