Home / 20,402.76-30,608.46-6,561.48

Finding the Fourth Proportional to 20,402.76, 30,608.46 and 6,561.48

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Solution

The fourth proportional to 20,402.76, 30,608.46 and 6,561.48 is: 9,843.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,402.76 : 30,608.46 = 6,561.48 : x
  2. Step 2: Convert to fraction form
    20,402.76/30,608.46 = 6,561.48/x
  3. Step 3: Cross multiply
    20,402.76x = 30,608.46 × 6,561.48
  4. Step 4: Simplify right side
    20,402.76x = 200,836,798.12
  5. Step 5: Solve for x
    x = 200,836,798.12/20,402.76
  6. Step 6: Final answer
    x = 9,843.61

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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.