Home / 20,669.22-28,523.25-11,237.94

Finding the Fourth Proportional to 20,669.22, 28,523.25 and 11,237.94

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Solution

The fourth proportional to 20,669.22, 28,523.25 and 11,237.94 is: 15,508.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.22 : 28,523.25 = 11,237.94 : x
  2. Step 2: Convert to fraction form
    20,669.22/28,523.25 = 11,237.94/x
  3. Step 3: Cross multiply
    20,669.22x = 28,523.25 × 11,237.94
  4. Step 4: Simplify right side
    20,669.22x = 320,542,572.11
  5. Step 5: Solve for x
    x = 320,542,572.11/20,669.22
  6. Step 6: Final answer
    x = 15,508.21

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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.