Home / 18,674.47-27,982.50-15,889.69

Finding the Fourth Proportional to 18,674.47, 27,982.50 and 15,889.69

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Solution

The fourth proportional to 18,674.47, 27,982.50 and 15,889.69 is: 23,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.47 : 27,982.50 = 15,889.69 : x
  2. Step 2: Convert to fraction form
    18,674.47/27,982.50 = 15,889.69/x
  3. Step 3: Cross multiply
    18,674.47x = 27,982.50 × 15,889.69
  4. Step 4: Simplify right side
    18,674.47x = 444,633,250.43
  5. Step 5: Solve for x
    x = 444,633,250.43/18,674.47
  6. Step 6: Final answer
    x = 23,809.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.