Home / 20,580.27-28,401.33-11,627.59

Finding the Fourth Proportional to 20,580.27, 28,401.33 and 11,627.59

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Solution

The fourth proportional to 20,580.27, 28,401.33 and 11,627.59 is: 16,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.27 : 28,401.33 = 11,627.59 : x
  2. Step 2: Convert to fraction form
    20,580.27/28,401.33 = 11,627.59/x
  3. Step 3: Cross multiply
    20,580.27x = 28,401.33 × 11,627.59
  4. Step 4: Simplify right side
    20,580.27x = 330,239,020.69
  5. Step 5: Solve for x
    x = 330,239,020.69/20,580.27
  6. Step 6: Final answer
    x = 16,046.39

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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.