Home / 27,912.76-38,488.20-21,524.92

Finding the Fourth Proportional to 27,912.76, 38,488.20 and 21,524.92

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Solution

The fourth proportional to 27,912.76, 38,488.20 and 21,524.92 is: 29,680.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,912.76 : 38,488.20 = 21,524.92 : x
  2. Step 2: Convert to fraction form
    27,912.76/38,488.20 = 21,524.92/x
  3. Step 3: Cross multiply
    27,912.76x = 38,488.20 × 21,524.92
  4. Step 4: Simplify right side
    27,912.76x = 828,455,425.94
  5. Step 5: Solve for x
    x = 828,455,425.94/27,912.76
  6. Step 6: Final answer
    x = 29,680.17

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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.