Home / 20,260.74-30,391.11-16,790.70

Finding the Fourth Proportional to 20,260.74, 30,391.11 and 16,790.70

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Solution

The fourth proportional to 20,260.74, 30,391.11 and 16,790.70 is: 25,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.74 : 30,391.11 = 16,790.70 : x
  2. Step 2: Convert to fraction form
    20,260.74/30,391.11 = 16,790.70/x
  3. Step 3: Cross multiply
    20,260.74x = 30,391.11 × 16,790.70
  4. Step 4: Simplify right side
    20,260.74x = 510,288,010.68
  5. Step 5: Solve for x
    x = 510,288,010.68/20,260.74
  6. Step 6: Final answer
    x = 25,186.05

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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.