Home / 20,406.52-30,606.90-6,553.72

Finding the Fourth Proportional to 20,406.52, 30,606.90 and 6,553.72

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Solution

The fourth proportional to 20,406.52, 30,606.90 and 6,553.72 is: 9,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.52 : 30,606.90 = 6,553.72 : x
  2. Step 2: Convert to fraction form
    20,406.52/30,606.90 = 6,553.72/x
  3. Step 3: Cross multiply
    20,406.52x = 30,606.90 × 6,553.72
  4. Step 4: Simplify right side
    20,406.52x = 200,589,052.67
  5. Step 5: Solve for x
    x = 200,589,052.67/20,406.52
  6. Step 6: Final answer
    x = 9,829.66

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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.