Home / 20,057.10-30,130.20-16,776.60

Finding the Fourth Proportional to 20,057.10, 30,130.20 and 16,776.60

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Solution

The fourth proportional to 20,057.10, 30,130.20 and 16,776.60 is: 25,202.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.10 : 30,130.20 = 16,776.60 : x
  2. Step 2: Convert to fraction form
    20,057.10/30,130.20 = 16,776.60/x
  3. Step 3: Cross multiply
    20,057.10x = 30,130.20 × 16,776.60
  4. Step 4: Simplify right side
    20,057.10x = 505,482,313.32
  5. Step 5: Solve for x
    x = 505,482,313.32/20,057.10
  6. Step 6: Final answer
    x = 25,202.16

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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.