Home / 20,213.88-30,325.14-7,066.68

Finding the Fourth Proportional to 20,213.88, 30,325.14 and 7,066.68

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Solution

The fourth proportional to 20,213.88, 30,325.14 and 7,066.68 is: 10,601.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.88 : 30,325.14 = 7,066.68 : x
  2. Step 2: Convert to fraction form
    20,213.88/30,325.14 = 7,066.68/x
  3. Step 3: Cross multiply
    20,213.88x = 30,325.14 × 7,066.68
  4. Step 4: Simplify right side
    20,213.88x = 214,298,060.34
  5. Step 5: Solve for x
    x = 214,298,060.34/20,213.88
  6. Step 6: Final answer
    x = 10,601.53

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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.