Home / 20,104.40-27,744.36-12,145.52

Finding the Fourth Proportional to 20,104.40, 27,744.36 and 12,145.52

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Solution

The fourth proportional to 20,104.40, 27,744.36 and 12,145.52 is: 16,760.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.40 : 27,744.36 = 12,145.52 : x
  2. Step 2: Convert to fraction form
    20,104.40/27,744.36 = 12,145.52/x
  3. Step 3: Cross multiply
    20,104.40x = 27,744.36 × 12,145.52
  4. Step 4: Simplify right side
    20,104.40x = 336,969,679.27
  5. Step 5: Solve for x
    x = 336,969,679.27/20,104.40
  6. Step 6: Final answer
    x = 16,760.99

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1.5x scale

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.