Home / 20,755.35-28,608.26-14,707.62

Finding the Fourth Proportional to 20,755.35, 28,608.26 and 14,707.62

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Solution

The fourth proportional to 20,755.35, 28,608.26 and 14,707.62 is: 20,272.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.35 : 28,608.26 = 14,707.62 : x
  2. Step 2: Convert to fraction form
    20,755.35/28,608.26 = 14,707.62/x
  3. Step 3: Cross multiply
    20,755.35x = 28,608.26 × 14,707.62
  4. Step 4: Simplify right side
    20,755.35x = 420,759,343.40
  5. Step 5: Solve for x
    x = 420,759,343.40/20,755.35
  6. Step 6: Final answer
    x = 20,272.33

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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.