Home / 27,684.75-38,205.78-15,110.31

Finding the Fourth Proportional to 27,684.75, 38,205.78 and 15,110.31

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Solution

The fourth proportional to 27,684.75, 38,205.78 and 15,110.31 is: 20,852.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,684.75 : 38,205.78 = 15,110.31 : x
  2. Step 2: Convert to fraction form
    27,684.75/38,205.78 = 15,110.31/x
  3. Step 3: Cross multiply
    27,684.75x = 38,205.78 × 15,110.31
  4. Step 4: Simplify right side
    27,684.75x = 577,301,179.59
  5. Step 5: Solve for x
    x = 577,301,179.59/27,684.75
  6. Step 6: Final answer
    x = 20,852.68

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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.