Home / 20,668.68-28,523.04-11,237.43

Finding the Fourth Proportional to 20,668.68, 28,523.04 and 11,237.43

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Solution

The fourth proportional to 20,668.68, 28,523.04 and 11,237.43 is: 15,507.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.68 : 28,523.04 = 11,237.43 : x
  2. Step 2: Convert to fraction form
    20,668.68/28,523.04 = 11,237.43/x
  3. Step 3: Cross multiply
    20,668.68x = 28,523.04 × 11,237.43
  4. Step 4: Simplify right side
    20,668.68x = 320,525,665.39
  5. Step 5: Solve for x
    x = 320,525,665.39/20,668.68
  6. Step 6: Final answer
    x = 15,507.80

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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.