Home / 20,064.68-27,680.52-12,102.48

Finding the Fourth Proportional to 20,064.68, 27,680.52 and 12,102.48

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Solution

The fourth proportional to 20,064.68, 27,680.52 and 12,102.48 is: 16,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.68 : 27,680.52 = 12,102.48 : x
  2. Step 2: Convert to fraction form
    20,064.68/27,680.52 = 12,102.48/x
  3. Step 3: Cross multiply
    20,064.68x = 27,680.52 × 12,102.48
  4. Step 4: Simplify right side
    20,064.68x = 335,002,939.69
  5. Step 5: Solve for x
    x = 335,002,939.69/20,064.68
  6. Step 6: Final answer
    x = 16,696.15

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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.