Home / 20,232.29-27,921.37-11,281.39

Finding the Fourth Proportional to 20,232.29, 27,921.37 and 11,281.39

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Solution

The fourth proportional to 20,232.29, 27,921.37 and 11,281.39 is: 15,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.29 : 27,921.37 = 11,281.39 : x
  2. Step 2: Convert to fraction form
    20,232.29/27,921.37 = 11,281.39/x
  3. Step 3: Cross multiply
    20,232.29x = 27,921.37 × 11,281.39
  4. Step 4: Simplify right side
    20,232.29x = 314,991,668.29
  5. Step 5: Solve for x
    x = 314,991,668.29/20,232.29
  6. Step 6: Final answer
    x = 15,568.76

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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.