Home / 20,408.68-30,613.02-6,558.76

Finding the Fourth Proportional to 20,408.68, 30,613.02 and 6,558.76

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Solution

The fourth proportional to 20,408.68, 30,613.02 and 6,558.76 is: 9,838.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.68 : 30,613.02 = 6,558.76 : x
  2. Step 2: Convert to fraction form
    20,408.68/30,613.02 = 6,558.76/x
  3. Step 3: Cross multiply
    20,408.68x = 30,613.02 × 6,558.76
  4. Step 4: Simplify right side
    20,408.68x = 200,783,451.06
  5. Step 5: Solve for x
    x = 200,783,451.06/20,408.68
  6. Step 6: Final answer
    x = 9,838.14

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Similar ratio
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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.