Home / 20,556.09-30,784.46-11,764.35

Finding the Fourth Proportional to 20,556.09, 30,784.46 and 11,764.35

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Solution

The fourth proportional to 20,556.09, 30,784.46 and 11,764.35 is: 17,618.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.09 : 30,784.46 = 11,764.35 : x
  2. Step 2: Convert to fraction form
    20,556.09/30,784.46 = 11,764.35/x
  3. Step 3: Cross multiply
    20,556.09x = 30,784.46 × 11,764.35
  4. Step 4: Simplify right side
    20,556.09x = 362,159,103.18
  5. Step 5: Solve for x
    x = 362,159,103.18/20,556.09
  6. Step 6: Final answer
    x = 17,618.09

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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.