Home / 20,104.49-27,744.17-12,145.23

Finding the Fourth Proportional to 20,104.49, 27,744.17 and 12,145.23

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Solution

The fourth proportional to 20,104.49, 27,744.17 and 12,145.23 is: 16,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,104.49 : 27,744.17 = 12,145.23 : x
  2. Step 2: Convert to fraction form
    20,104.49/27,744.17 = 12,145.23/x
  3. Step 3: Cross multiply
    20,104.49x = 27,744.17 × 12,145.23
  4. Step 4: Simplify right side
    20,104.49x = 336,959,265.08
  5. Step 5: Solve for x
    x = 336,959,265.08/20,104.49
  6. Step 6: Final answer
    x = 16,760.40

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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.