Home / 18,019.92-27,031.26-4,872.36

Finding the Fourth Proportional to 18,019.92, 27,031.26 and 4,872.36

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Solution

The fourth proportional to 18,019.92, 27,031.26 and 4,872.36 is: 7,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.92 : 27,031.26 = 4,872.36 : x
  2. Step 2: Convert to fraction form
    18,019.92/27,031.26 = 4,872.36/x
  3. Step 3: Cross multiply
    18,019.92x = 27,031.26 × 4,872.36
  4. Step 4: Simplify right side
    18,019.92x = 131,706,029.97
  5. Step 5: Solve for x
    x = 131,706,029.97/18,019.92
  6. Step 6: Final answer
    x = 7,308.91

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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.