Home / 27,829.33-38,409.41-21,103.62

Finding the Fourth Proportional to 27,829.33, 38,409.41 and 21,103.62

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Solution

The fourth proportional to 27,829.33, 38,409.41 and 21,103.62 is: 29,126.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,829.33 : 38,409.41 = 21,103.62 : x
  2. Step 2: Convert to fraction form
    27,829.33/38,409.41 = 21,103.62/x
  3. Step 3: Cross multiply
    27,829.33x = 38,409.41 × 21,103.62
  4. Step 4: Simplify right side
    27,829.33x = 810,577,593.06
  5. Step 5: Solve for x
    x = 810,577,593.06/27,829.33
  6. Step 6: Final answer
    x = 29,126.74

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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.