Home / 27,456.71-37,889.84-15,519.62

Finding the Fourth Proportional to 27,456.71, 37,889.84 and 15,519.62

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Solution

The fourth proportional to 27,456.71, 37,889.84 and 15,519.62 is: 21,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.71 : 37,889.84 = 15,519.62 : x
  2. Step 2: Convert to fraction form
    27,456.71/37,889.84 = 15,519.62/x
  3. Step 3: Cross multiply
    27,456.71x = 37,889.84 × 15,519.62
  4. Step 4: Simplify right side
    27,456.71x = 588,036,052.18
  5. Step 5: Solve for x
    x = 588,036,052.18/27,456.71
  6. Step 6: Final answer
    x = 21,416.85

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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.