Home / 20,011.36-27,613.68-11,625.76

Finding the Fourth Proportional to 20,011.36, 27,613.68 and 11,625.76

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Solution

The fourth proportional to 20,011.36, 27,613.68 and 11,625.76 is: 16,042.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.36 : 27,613.68 = 11,625.76 : x
  2. Step 2: Convert to fraction form
    20,011.36/27,613.68 = 11,625.76/x
  3. Step 3: Cross multiply
    20,011.36x = 27,613.68 × 11,625.76
  4. Step 4: Simplify right side
    20,011.36x = 321,030,016.40
  5. Step 5: Solve for x
    x = 321,030,016.40/20,011.36
  6. Step 6: Final answer
    x = 16,042.39

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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.