Home / 20,755.37-28,648.55-14,469.77

Finding the Fourth Proportional to 20,755.37, 28,648.55 and 14,469.77

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Solution

The fourth proportional to 20,755.37, 28,648.55 and 14,469.77 is: 19,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.37 : 28,648.55 = 14,469.77 : x
  2. Step 2: Convert to fraction form
    20,755.37/28,648.55 = 14,469.77/x
  3. Step 3: Cross multiply
    20,755.37x = 28,648.55 × 14,469.77
  4. Step 4: Simplify right side
    20,755.37x = 414,537,929.33
  5. Step 5: Solve for x
    x = 414,537,929.33/20,755.37
  6. Step 6: Final answer
    x = 19,972.56

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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.