Home / 20,588.85-28,412.37-11,636.73

Finding the Fourth Proportional to 20,588.85, 28,412.37 and 11,636.73

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Solution

The fourth proportional to 20,588.85, 28,412.37 and 11,636.73 is: 16,058.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588.85 : 28,412.37 = 11,636.73 : x
  2. Step 2: Convert to fraction form
    20,588.85/28,412.37 = 11,636.73/x
  3. Step 3: Cross multiply
    20,588.85x = 28,412.37 × 11,636.73
  4. Step 4: Simplify right side
    20,588.85x = 330,627,078.35
  5. Step 5: Solve for x
    x = 330,627,078.35/20,588.85
  6. Step 6: Final answer
    x = 16,058.55

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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.