Home / 18,031.20-27,043.68-4,881.84

Finding the Fourth Proportional to 18,031.20, 27,043.68 and 4,881.84

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Solution

The fourth proportional to 18,031.20, 27,043.68 and 4,881.84 is: 7,321.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,031.20 : 27,043.68 = 4,881.84 : x
  2. Step 2: Convert to fraction form
    18,031.20/27,043.68 = 4,881.84/x
  3. Step 3: Cross multiply
    18,031.20x = 27,043.68 × 4,881.84
  4. Step 4: Simplify right side
    18,031.20x = 132,022,918.77
  5. Step 5: Solve for x
    x = 132,022,918.77/18,031.20
  6. Step 6: Final answer
    x = 7,321.92

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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.