Home / 27,714.39-38,245.28-15,615.49

Finding the Fourth Proportional to 27,714.39, 38,245.28 and 15,615.49

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Solution

The fourth proportional to 27,714.39, 38,245.28 and 15,615.49 is: 21,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,714.39 : 38,245.28 = 15,615.49 : x
  2. Step 2: Convert to fraction form
    27,714.39/38,245.28 = 15,615.49/x
  3. Step 3: Cross multiply
    27,714.39x = 38,245.28 × 15,615.49
  4. Step 4: Simplify right side
    27,714.39x = 597,218,709.31
  5. Step 5: Solve for x
    x = 597,218,709.31/27,714.39
  6. Step 6: Final answer
    x = 21,549.05

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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.