Home / 27,714.89-38,245.97-15,615.99

Finding the Fourth Proportional to 27,714.89, 38,245.97 and 15,615.99

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Solution

The fourth proportional to 27,714.89, 38,245.97 and 15,615.99 is: 21,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,714.89 : 38,245.97 = 15,615.99 : x
  2. Step 2: Convert to fraction form
    27,714.89/38,245.97 = 15,615.99/x
  3. Step 3: Cross multiply
    27,714.89x = 38,245.97 × 15,615.99
  4. Step 4: Simplify right side
    27,714.89x = 597,248,606.98
  5. Step 5: Solve for x
    x = 597,248,606.98/27,714.89
  6. Step 6: Final answer
    x = 21,549.74

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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.