Home / 27,714.15-38,249.70-15,615.75

Finding the Fourth Proportional to 27,714.15, 38,249.70 and 15,615.75

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Solution

The fourth proportional to 27,714.15, 38,249.70 and 15,615.75 is: 21,552.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,714.15 : 38,249.70 = 15,615.75 : x
  2. Step 2: Convert to fraction form
    27,714.15/38,249.70 = 15,615.75/x
  3. Step 3: Cross multiply
    27,714.15x = 38,249.70 × 15,615.75
  4. Step 4: Simplify right side
    27,714.15x = 597,297,752.78
  5. Step 5: Solve for x
    x = 597,297,752.78/27,714.15
  6. Step 6: Final answer
    x = 21,552.09

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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.