Home / 20,231.03-30,337.45-7,742.32

Finding the Fourth Proportional to 20,231.03, 30,337.45 and 7,742.32

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Solution

The fourth proportional to 20,231.03, 30,337.45 and 7,742.32 is: 11,610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.03 : 30,337.45 = 7,742.32 : x
  2. Step 2: Convert to fraction form
    20,231.03/30,337.45 = 7,742.32/x
  3. Step 3: Cross multiply
    20,231.03x = 30,337.45 × 7,742.32
  4. Step 4: Simplify right side
    20,231.03x = 234,882,289.56
  5. Step 5: Solve for x
    x = 234,882,289.56/20,231.03
  6. Step 6: Final answer
    x = 11,610.00

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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.