Home / 20,572.40-30,855.45-6,530.61

Finding the Fourth Proportional to 20,572.40, 30,855.45 and 6,530.61

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Solution

The fourth proportional to 20,572.40, 30,855.45 and 6,530.61 is: 9,794.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.40 : 30,855.45 = 6,530.61 : x
  2. Step 2: Convert to fraction form
    20,572.40/30,855.45 = 6,530.61/x
  3. Step 3: Cross multiply
    20,572.40x = 30,855.45 × 6,530.61
  4. Step 4: Simplify right side
    20,572.40x = 201,504,768.25
  5. Step 5: Solve for x
    x = 201,504,768.25/20,572.40
  6. Step 6: Final answer
    x = 9,794.91

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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.