Home / 27,612.70-38,104.37-15,676.69

Finding the Fourth Proportional to 27,612.70, 38,104.37 and 15,676.69

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Solution

The fourth proportional to 27,612.70, 38,104.37 and 15,676.69 is: 21,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,612.70 : 38,104.37 = 15,676.69 : x
  2. Step 2: Convert to fraction form
    27,612.70/38,104.37 = 15,676.69/x
  3. Step 3: Cross multiply
    27,612.70x = 38,104.37 × 15,676.69
  4. Step 4: Simplify right side
    27,612.70x = 597,350,440.91
  5. Step 5: Solve for x
    x = 597,350,440.91/27,612.70
  6. Step 6: Final answer
    x = 21,633.18

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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.