Home / 27,751.20-38,296.64-15,175.92

Finding the Fourth Proportional to 27,751.20, 38,296.64 and 15,175.92

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Solution

The fourth proportional to 27,751.20, 38,296.64 and 15,175.92 is: 20,942.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,751.20 : 38,296.64 = 15,175.92 : x
  2. Step 2: Convert to fraction form
    27,751.20/38,296.64 = 15,175.92/x
  3. Step 3: Cross multiply
    27,751.20x = 38,296.64 × 15,175.92
  4. Step 4: Simplify right side
    27,751.20x = 581,186,744.91
  5. Step 5: Solve for x
    x = 581,186,744.91/27,751.20
  6. Step 6: Final answer
    x = 20,942.76

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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.