Home / 20,136.09-30,213.14-10,270.17

Finding the Fourth Proportional to 20,136.09, 30,213.14 and 10,270.17

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Solution

The fourth proportional to 20,136.09, 30,213.14 and 10,270.17 is: 15,409.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.09 : 30,213.14 = 10,270.17 : x
  2. Step 2: Convert to fraction form
    20,136.09/30,213.14 = 10,270.17/x
  3. Step 3: Cross multiply
    20,136.09x = 30,213.14 × 10,270.17
  4. Step 4: Simplify right side
    20,136.09x = 310,294,032.68
  5. Step 5: Solve for x
    x = 310,294,032.68/20,136.09
  6. Step 6: Final answer
    x = 15,409.85

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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.