Home / 27,672.96-38,191.20-15,736.26

Finding the Fourth Proportional to 27,672.96, 38,191.20 and 15,736.26

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Solution

The fourth proportional to 27,672.96, 38,191.20 and 15,736.26 is: 21,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,672.96 : 38,191.20 = 15,736.26 : x
  2. Step 2: Convert to fraction form
    27,672.96/38,191.20 = 15,736.26/x
  3. Step 3: Cross multiply
    27,672.96x = 38,191.20 × 15,736.26
  4. Step 4: Simplify right side
    27,672.96x = 600,986,652.91
  5. Step 5: Solve for x
    x = 600,986,652.91/27,672.96
  6. Step 6: Final answer
    x = 21,717.47

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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.