Home / 18,031.78-27,050.76-5,551.56

Finding the Fourth Proportional to 18,031.78, 27,050.76 and 5,551.56

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Solution

The fourth proportional to 18,031.78, 27,050.76 and 5,551.56 is: 8,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.78 : 27,050.76 = 5,551.56 : x
  2. Step 2: Convert to fraction form
    18,031.78/27,050.76 = 5,551.56/x
  3. Step 3: Cross multiply
    18,031.78x = 27,050.76 × 5,551.56
  4. Step 4: Simplify right side
    18,031.78x = 150,173,917.19
  5. Step 5: Solve for x
    x = 150,173,917.19/18,031.78
  6. Step 6: Final answer
    x = 8,328.29

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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.