Home / 27,748.16-38,296.74-21,824.73

Finding the Fourth Proportional to 27,748.16, 38,296.74 and 21,824.73

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Solution

The fourth proportional to 27,748.16, 38,296.74 and 21,824.73 is: 30,121.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.16 : 38,296.74 = 21,824.73 : x
  2. Step 2: Convert to fraction form
    27,748.16/38,296.74 = 21,824.73/x
  3. Step 3: Cross multiply
    27,748.16x = 38,296.74 × 21,824.73
  4. Step 4: Simplify right side
    27,748.16x = 835,816,010.38
  5. Step 5: Solve for x
    x = 835,816,010.38/27,748.16
  6. Step 6: Final answer
    x = 30,121.50

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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.