Home / 20,062.10-30,137.70-16,781.60

Finding the Fourth Proportional to 20,062.10, 30,137.70 and 16,781.60

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Solution

The fourth proportional to 20,062.10, 30,137.70 and 16,781.60 is: 25,209.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.10 : 30,137.70 = 16,781.60 : x
  2. Step 2: Convert to fraction form
    20,062.10/30,137.70 = 16,781.60/x
  3. Step 3: Cross multiply
    20,062.10x = 30,137.70 × 16,781.60
  4. Step 4: Simplify right side
    20,062.10x = 505,758,826.32
  5. Step 5: Solve for x
    x = 505,758,826.32/20,062.10
  6. Step 6: Final answer
    x = 25,209.67

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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.