Home / 20,405.58-30,606.21-6,553.50

Finding the Fourth Proportional to 20,405.58, 30,606.21 and 6,553.50

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Solution

The fourth proportional to 20,405.58, 30,606.21 and 6,553.50 is: 9,829.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405.58 : 30,606.21 = 6,553.50 : x
  2. Step 2: Convert to fraction form
    20,405.58/30,606.21 = 6,553.50/x
  3. Step 3: Cross multiply
    20,405.58x = 30,606.21 × 6,553.50
  4. Step 4: Simplify right side
    20,405.58x = 200,577,797.24
  5. Step 5: Solve for x
    x = 200,577,797.24/20,405.58
  6. Step 6: Final answer
    x = 9,829.56

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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.