Home / 27,131.58-37,456.47-18,645.90

Finding the Fourth Proportional to 27,131.58, 37,456.47 and 18,645.90

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Solution

The fourth proportional to 27,131.58, 37,456.47 and 18,645.90 is: 25,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,131.58 : 37,456.47 = 18,645.90 : x
  2. Step 2: Convert to fraction form
    27,131.58/37,456.47 = 18,645.90/x
  3. Step 3: Cross multiply
    27,131.58x = 37,456.47 × 18,645.90
  4. Step 4: Simplify right side
    27,131.58x = 698,409,593.97
  5. Step 5: Solve for x
    x = 698,409,593.97/27,131.58
  6. Step 6: Final answer
    x = 25,741.57

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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.