Home / 20,504.76-30,766.86-12,201.18

Finding the Fourth Proportional to 20,504.76, 30,766.86 and 12,201.18

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Solution

The fourth proportional to 20,504.76, 30,766.86 and 12,201.18 is: 18,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.76 : 30,766.86 = 12,201.18 : x
  2. Step 2: Convert to fraction form
    20,504.76/30,766.86 = 12,201.18/x
  3. Step 3: Cross multiply
    20,504.76x = 30,766.86 × 12,201.18
  4. Step 4: Simplify right side
    20,504.76x = 375,391,996.89
  5. Step 5: Solve for x
    x = 375,391,996.89/20,504.76
  6. Step 6: Final answer
    x = 18,307.55

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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.