Home / 20,136.96-27,789.03-11,184.23

Finding the Fourth Proportional to 20,136.96, 27,789.03 and 11,184.23

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Solution

The fourth proportional to 20,136.96, 27,789.03 and 11,184.23 is: 15,434.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.96 : 27,789.03 = 11,184.23 : x
  2. Step 2: Convert to fraction form
    20,136.96/27,789.03 = 11,184.23/x
  3. Step 3: Cross multiply
    20,136.96x = 27,789.03 × 11,184.23
  4. Step 4: Simplify right side
    20,136.96x = 310,798,903.00
  5. Step 5: Solve for x
    x = 310,798,903.00/20,136.96
  6. Step 6: Final answer
    x = 15,434.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.