Home / 20,157.54-30,236.31-16,687.50

Finding the Fourth Proportional to 20,157.54, 30,236.31 and 16,687.50

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Solution

The fourth proportional to 20,157.54, 30,236.31 and 16,687.50 is: 25,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.54 : 30,236.31 = 16,687.50 : x
  2. Step 2: Convert to fraction form
    20,157.54/30,236.31 = 16,687.50/x
  3. Step 3: Cross multiply
    20,157.54x = 30,236.31 × 16,687.50
  4. Step 4: Simplify right side
    20,157.54x = 504,568,423.13
  5. Step 5: Solve for x
    x = 504,568,423.13/20,157.54
  6. Step 6: Final answer
    x = 25,031.25

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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.