Home / 20,412.04-30,622.92-7,932.36

Finding the Fourth Proportional to 20,412.04, 30,622.92 and 7,932.36

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Solution

The fourth proportional to 20,412.04, 30,622.92 and 7,932.36 is: 11,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.04 : 30,622.92 = 7,932.36 : x
  2. Step 2: Convert to fraction form
    20,412.04/30,622.92 = 7,932.36/x
  3. Step 3: Cross multiply
    20,412.04x = 30,622.92 × 7,932.36
  4. Step 4: Simplify right side
    20,412.04x = 242,912,025.69
  5. Step 5: Solve for x
    x = 242,912,025.69/20,412.04
  6. Step 6: Final answer
    x = 11,900.43

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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.