Home / 20,488.44-28,274.54-11,536.24

Finding the Fourth Proportional to 20,488.44, 28,274.54 and 11,536.24

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Solution

The fourth proportional to 20,488.44, 28,274.54 and 11,536.24 is: 15,920.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.44 : 28,274.54 = 11,536.24 : x
  2. Step 2: Convert to fraction form
    20,488.44/28,274.54 = 11,536.24/x
  3. Step 3: Cross multiply
    20,488.44x = 28,274.54 × 11,536.24
  4. Step 4: Simplify right side
    20,488.44x = 326,181,879.33
  5. Step 5: Solve for x
    x = 326,181,879.33/20,488.44
  6. Step 6: Final answer
    x = 15,920.29

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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.