Home / 27,832.88-38,409.29-15,086.12

Finding the Fourth Proportional to 27,832.88, 38,409.29 and 15,086.12

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Solution

The fourth proportional to 27,832.88, 38,409.29 and 15,086.12 is: 20,818.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,832.88 : 38,409.29 = 15,086.12 : x
  2. Step 2: Convert to fraction form
    27,832.88/38,409.29 = 15,086.12/x
  3. Step 3: Cross multiply
    27,832.88x = 38,409.29 × 15,086.12
  4. Step 4: Simplify right side
    27,832.88x = 579,446,947.15
  5. Step 5: Solve for x
    x = 579,446,947.15/27,832.88
  6. Step 6: Final answer
    x = 20,818.79

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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.