Home / 20,727.68-31,094.88-8,247.68

Finding the Fourth Proportional to 20,727.68, 31,094.88 and 8,247.68

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Solution

The fourth proportional to 20,727.68, 31,094.88 and 8,247.68 is: 12,372.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,727.68 : 31,094.88 = 8,247.68 : x
  2. Step 2: Convert to fraction form
    20,727.68/31,094.88 = 8,247.68/x
  3. Step 3: Cross multiply
    20,727.68x = 31,094.88 × 8,247.68
  4. Step 4: Simplify right side
    20,727.68x = 256,460,619.88
  5. Step 5: Solve for x
    x = 256,460,619.88/20,727.68
  6. Step 6: Final answer
    x = 12,372.86

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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.