Home / 28,735.75-39,655.34-16,160.50

Finding the Fourth Proportional to 28,735.75, 39,655.34 and 16,160.50

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Solution

The fourth proportional to 28,735.75, 39,655.34 and 16,160.50 is: 22,301.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.75 : 39,655.34 = 16,160.50 : x
  2. Step 2: Convert to fraction form
    28,735.75/39,655.34 = 16,160.50/x
  3. Step 3: Cross multiply
    28,735.75x = 39,655.34 × 16,160.50
  4. Step 4: Simplify right side
    28,735.75x = 640,850,122.07
  5. Step 5: Solve for x
    x = 640,850,122.07/28,735.75
  6. Step 6: Final answer
    x = 22,301.49

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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.