Home / 20,250.70-30,383.34-7,105.12

Finding the Fourth Proportional to 20,250.70, 30,383.34 and 7,105.12

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Solution

The fourth proportional to 20,250.70, 30,383.34 and 7,105.12 is: 10,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.70 : 30,383.34 = 7,105.12 : x
  2. Step 2: Convert to fraction form
    20,250.70/30,383.34 = 7,105.12/x
  3. Step 3: Cross multiply
    20,250.70x = 30,383.34 × 7,105.12
  4. Step 4: Simplify right side
    20,250.70x = 215,877,089.26
  5. Step 5: Solve for x
    x = 215,877,089.26/20,250.70
  6. Step 6: Final answer
    x = 10,660.23

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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.