Home / 20,136.84-30,214.26-10,270.92

Finding the Fourth Proportional to 20,136.84, 30,214.26 and 10,270.92

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Solution

The fourth proportional to 20,136.84, 30,214.26 and 10,270.92 is: 15,410.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.84 : 30,214.26 = 10,270.92 : x
  2. Step 2: Convert to fraction form
    20,136.84/30,214.26 = 10,270.92/x
  3. Step 3: Cross multiply
    20,136.84x = 30,214.26 × 10,270.92
  4. Step 4: Simplify right side
    20,136.84x = 310,328,247.32
  5. Step 5: Solve for x
    x = 310,328,247.32/20,136.84
  6. Step 6: Final answer
    x = 15,410.97

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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.