Home / 20,600.75-28,428.93-11,648.27

Finding the Fourth Proportional to 20,600.75, 28,428.93 and 11,648.27

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Solution

The fourth proportional to 20,600.75, 28,428.93 and 11,648.27 is: 16,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.75 : 28,428.93 = 11,648.27 : x
  2. Step 2: Convert to fraction form
    20,600.75/28,428.93 = 11,648.27/x
  3. Step 3: Cross multiply
    20,600.75x = 28,428.93 × 11,648.27
  4. Step 4: Simplify right side
    20,600.75x = 331,147,710.31
  5. Step 5: Solve for x
    x = 331,147,710.31/20,600.75
  6. Step 6: Final answer
    x = 16,074.55

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1.5x scale

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.