Home / 27,719.71-38,252.62-15,620.84

Finding the Fourth Proportional to 27,719.71, 38,252.62 and 15,620.84

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Solution

The fourth proportional to 27,719.71, 38,252.62 and 15,620.84 is: 21,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,719.71 : 38,252.62 = 15,620.84 : x
  2. Step 2: Convert to fraction form
    27,719.71/38,252.62 = 15,620.84/x
  3. Step 3: Cross multiply
    27,719.71x = 38,252.62 × 15,620.84
  4. Step 4: Simplify right side
    27,719.71x = 597,538,056.60
  5. Step 5: Solve for x
    x = 597,538,056.60/27,719.71
  6. Step 6: Final answer
    x = 21,556.43

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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.