Home / 20,453.88-30,635.84-16,903.64

Finding the Fourth Proportional to 20,453.88, 30,635.84 and 16,903.64

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Solution

The fourth proportional to 20,453.88, 30,635.84 and 16,903.64 is: 25,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.88 : 30,635.84 = 16,903.64 : x
  2. Step 2: Convert to fraction form
    20,453.88/30,635.84 = 16,903.64/x
  3. Step 3: Cross multiply
    20,453.88x = 30,635.84 × 16,903.64
  4. Step 4: Simplify right side
    20,453.88x = 517,857,210.46
  5. Step 5: Solve for x
    x = 517,857,210.46/20,453.88
  6. Step 6: Final answer
    x = 25,318.29

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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.