Home / 20,609.01-28,440.32-11,177.37

Finding the Fourth Proportional to 20,609.01, 28,440.32 and 11,177.37

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Solution

The fourth proportional to 20,609.01, 28,440.32 and 11,177.37 is: 15,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,609.01 : 28,440.32 = 11,177.37 : x
  2. Step 2: Convert to fraction form
    20,609.01/28,440.32 = 11,177.37/x
  3. Step 3: Cross multiply
    20,609.01x = 28,440.32 × 11,177.37
  4. Step 4: Simplify right side
    20,609.01x = 317,887,923.67
  5. Step 5: Solve for x
    x = 317,887,923.67/20,609.01
  6. Step 6: Final answer
    x = 15,424.71

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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.