Home / 20,136.48-30,200.16-8,446.56

Finding the Fourth Proportional to 20,136.48, 30,200.16 and 8,446.56

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Solution

The fourth proportional to 20,136.48, 30,200.16 and 8,446.56 is: 12,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.48 : 30,200.16 = 8,446.56 : x
  2. Step 2: Convert to fraction form
    20,136.48/30,200.16 = 8,446.56/x
  3. Step 3: Cross multiply
    20,136.48x = 30,200.16 × 8,446.56
  4. Step 4: Simplify right side
    20,136.48x = 255,087,463.45
  5. Step 5: Solve for x
    x = 255,087,463.45/20,136.48
  6. Step 6: Final answer
    x = 12,667.93

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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.