Home / 20,495.88-28,284.37-11,996.46

Finding the Fourth Proportional to 20,495.88, 28,284.37 and 11,996.46

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Solution

The fourth proportional to 20,495.88, 28,284.37 and 11,996.46 is: 16,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.88 : 28,284.37 = 11,996.46 : x
  2. Step 2: Convert to fraction form
    20,495.88/28,284.37 = 11,996.46/x
  3. Step 3: Cross multiply
    20,495.88x = 28,284.37 × 11,996.46
  4. Step 4: Simplify right side
    20,495.88x = 339,312,283.34
  5. Step 5: Solve for x
    x = 339,312,283.34/20,495.88
  6. Step 6: Final answer
    x = 16,555.15

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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.