Home / 20,165.04-27,824.70-11,212.60

Finding the Fourth Proportional to 20,165.04, 27,824.70 and 11,212.60

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Solution

The fourth proportional to 20,165.04, 27,824.70 and 11,212.60 is: 15,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.04 : 27,824.70 = 11,212.60 : x
  2. Step 2: Convert to fraction form
    20,165.04/27,824.70 = 11,212.60/x
  3. Step 3: Cross multiply
    20,165.04x = 27,824.70 × 11,212.60
  4. Step 4: Simplify right side
    20,165.04x = 311,987,231.22
  5. Step 5: Solve for x
    x = 311,987,231.22/20,165.04
  6. Step 6: Final answer
    x = 15,471.69

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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.