Home / 20,400.76-30,605.46-6,559.48

Finding the Fourth Proportional to 20,400.76, 30,605.46 and 6,559.48

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Solution

The fourth proportional to 20,400.76, 30,605.46 and 6,559.48 is: 9,840.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.76 : 30,605.46 = 6,559.48 : x
  2. Step 2: Convert to fraction form
    20,400.76/30,605.46 = 6,559.48/x
  3. Step 3: Cross multiply
    20,400.76x = 30,605.46 × 6,559.48
  4. Step 4: Simplify right side
    20,400.76x = 200,755,902.76
  5. Step 5: Solve for x
    x = 200,755,902.76/20,400.76
  6. Step 6: Final answer
    x = 9,840.61

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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.