Home / 20,136.60-30,200.04-8,446.68

Finding the Fourth Proportional to 20,136.60, 30,200.04 and 8,446.68

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Solution

The fourth proportional to 20,136.60, 30,200.04 and 8,446.68 is: 12,667.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.60 : 30,200.04 = 8,446.68 : x
  2. Step 2: Convert to fraction form
    20,136.60/30,200.04 = 8,446.68/x
  3. Step 3: Cross multiply
    20,136.60x = 30,200.04 × 8,446.68
  4. Step 4: Simplify right side
    20,136.60x = 255,090,073.87
  5. Step 5: Solve for x
    x = 255,090,073.87/20,136.60
  6. Step 6: Final answer
    x = 12,667.98

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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.