Home / 20,108.94-27,759.96-14,145.72

Finding the Fourth Proportional to 20,108.94, 27,759.96 and 14,145.72

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Solution

The fourth proportional to 20,108.94, 27,759.96 and 14,145.72 is: 19,527.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.94 : 27,759.96 = 14,145.72 : x
  2. Step 2: Convert to fraction form
    20,108.94/27,759.96 = 14,145.72/x
  3. Step 3: Cross multiply
    20,108.94x = 27,759.96 × 14,145.72
  4. Step 4: Simplify right side
    20,108.94x = 392,684,621.37
  5. Step 5: Solve for x
    x = 392,684,621.37/20,108.94
  6. Step 6: Final answer
    x = 19,527.86

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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.