Home / 20,555.14-28,367.37-11,599.38

Finding the Fourth Proportional to 20,555.14, 28,367.37 and 11,599.38

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Solution

The fourth proportional to 20,555.14, 28,367.37 and 11,599.38 is: 16,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.14 : 28,367.37 = 11,599.38 : x
  2. Step 2: Convert to fraction form
    20,555.14/28,367.37 = 11,599.38/x
  3. Step 3: Cross multiply
    20,555.14x = 28,367.37 × 11,599.38
  4. Step 4: Simplify right side
    20,555.14x = 329,043,762.39
  5. Step 5: Solve for x
    x = 329,043,762.39/20,555.14
  6. Step 6: Final answer
    x = 16,007.86

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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.