Home / 20,647.52-28,494.24-11,696.48

Finding the Fourth Proportional to 20,647.52, 28,494.24 and 11,696.48

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Solution

The fourth proportional to 20,647.52, 28,494.24 and 11,696.48 is: 16,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,647.52 : 28,494.24 = 11,696.48 : x
  2. Step 2: Convert to fraction form
    20,647.52/28,494.24 = 11,696.48/x
  3. Step 3: Cross multiply
    20,647.52x = 28,494.24 × 11,696.48
  4. Step 4: Simplify right side
    20,647.52x = 333,282,308.28
  5. Step 5: Solve for x
    x = 333,282,308.28/20,647.52
  6. Step 6: Final answer
    x = 16,141.52

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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.