Home / 27,615.82-38,113.86-15,676.70

Finding the Fourth Proportional to 27,615.82, 38,113.86 and 15,676.70

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Solution

The fourth proportional to 27,615.82, 38,113.86 and 15,676.70 is: 21,636.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,615.82 : 38,113.86 = 15,676.70 : x
  2. Step 2: Convert to fraction form
    27,615.82/38,113.86 = 15,676.70/x
  3. Step 3: Cross multiply
    27,615.82x = 38,113.86 × 15,676.70
  4. Step 4: Simplify right side
    27,615.82x = 597,499,549.06
  5. Step 5: Solve for x
    x = 597,499,549.06/27,615.82
  6. Step 6: Final answer
    x = 21,636.13

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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.