Home / 20,514.09-30,771.38-5,722.11

Finding the Fourth Proportional to 20,514.09, 30,771.38 and 5,722.11

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Solution

The fourth proportional to 20,514.09, 30,771.38 and 5,722.11 is: 8,583.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.09 : 30,771.38 = 5,722.11 : x
  2. Step 2: Convert to fraction form
    20,514.09/30,771.38 = 5,722.11/x
  3. Step 3: Cross multiply
    20,514.09x = 30,771.38 × 5,722.11
  4. Step 4: Simplify right side
    20,514.09x = 176,077,192.60
  5. Step 5: Solve for x
    x = 176,077,192.60/20,514.09
  6. Step 6: Final answer
    x = 8,583.23

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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.