Home / 21,518.43-32,278.61-6,727.65

Finding the Fourth Proportional to 21,518.43, 32,278.61 and 6,727.65

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Solution

The fourth proportional to 21,518.43, 32,278.61 and 6,727.65 is: 10,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,518.43 : 32,278.61 = 6,727.65 : x
  2. Step 2: Convert to fraction form
    21,518.43/32,278.61 = 6,727.65/x
  3. Step 3: Cross multiply
    21,518.43x = 32,278.61 × 6,727.65
  4. Step 4: Simplify right side
    21,518.43x = 217,159,190.57
  5. Step 5: Solve for x
    x = 217,159,190.57/21,518.43
  6. Step 6: Final answer
    x = 10,091.78

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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.