Home / 20,837.39-28,755.93-11,763.23

Finding the Fourth Proportional to 20,837.39, 28,755.93 and 11,763.23

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Solution

The fourth proportional to 20,837.39, 28,755.93 and 11,763.23 is: 16,233.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.39 : 28,755.93 = 11,763.23 : x
  2. Step 2: Convert to fraction form
    20,837.39/28,755.93 = 11,763.23/x
  3. Step 3: Cross multiply
    20,837.39x = 28,755.93 × 11,763.23
  4. Step 4: Simplify right side
    20,837.39x = 338,262,474.67
  5. Step 5: Solve for x
    x = 338,262,474.67/20,837.39
  6. Step 6: Final answer
    x = 16,233.44

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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.