Home / 20,767.70-31,149.81-6,727.43

Finding the Fourth Proportional to 20,767.70, 31,149.81 and 6,727.43

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Solution

The fourth proportional to 20,767.70, 31,149.81 and 6,727.43 is: 10,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.70 : 31,149.81 = 6,727.43 : x
  2. Step 2: Convert to fraction form
    20,767.70/31,149.81 = 6,727.43/x
  3. Step 3: Cross multiply
    20,767.70x = 31,149.81 × 6,727.43
  4. Step 4: Simplify right side
    20,767.70x = 209,558,244.16
  5. Step 5: Solve for x
    x = 209,558,244.16/20,767.70
  6. Step 6: Final answer
    x = 10,090.58

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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.