Home / 27,605.16-38,103.72-15,676.44

Finding the Fourth Proportional to 27,605.16, 38,103.72 and 15,676.44

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Solution

The fourth proportional to 27,605.16, 38,103.72 and 15,676.44 is: 21,638.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,605.16 : 38,103.72 = 15,676.44 : x
  2. Step 2: Convert to fraction form
    27,605.16/38,103.72 = 15,676.44/x
  3. Step 3: Cross multiply
    27,605.16x = 38,103.72 × 15,676.44
  4. Step 4: Simplify right side
    27,605.16x = 597,330,680.36
  5. Step 5: Solve for x
    x = 597,330,680.36/27,605.16
  6. Step 6: Final answer
    x = 21,638.37

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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.