Home / 21,520.79-32,279.97-6,727.96

Finding the Fourth Proportional to 21,520.79, 32,279.97 and 6,727.96

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Solution

The fourth proportional to 21,520.79, 32,279.97 and 6,727.96 is: 10,091.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,520.79 : 32,279.97 = 6,727.96 : x
  2. Step 2: Convert to fraction form
    21,520.79/32,279.97 = 6,727.96/x
  3. Step 3: Cross multiply
    21,520.79x = 32,279.97 × 6,727.96
  4. Step 4: Simplify right side
    21,520.79x = 217,178,410.84
  5. Step 5: Solve for x
    x = 217,178,410.84/21,520.79
  6. Step 6: Final answer
    x = 10,091.56

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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.