Home / 27,636.82-38,136.68-15,536.64

Finding the Fourth Proportional to 27,636.82, 38,136.68 and 15,536.64

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Solution

The fourth proportional to 27,636.82, 38,136.68 and 15,536.64 is: 21,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.82 : 38,136.68 = 15,536.64 : x
  2. Step 2: Convert to fraction form
    27,636.82/38,136.68 = 15,536.64/x
  3. Step 3: Cross multiply
    27,636.82x = 38,136.68 × 15,536.64
  4. Step 4: Simplify right side
    27,636.82x = 592,515,867.96
  5. Step 5: Solve for x
    x = 592,515,867.96/27,636.82
  6. Step 6: Final answer
    x = 21,439.36

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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.