Home / 20,347.20-30,480.57-15,944.04

Finding the Fourth Proportional to 20,347.20, 30,480.57 and 15,944.04

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Solution

The fourth proportional to 20,347.20, 30,480.57 and 15,944.04 is: 23,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.20 : 30,480.57 = 15,944.04 : x
  2. Step 2: Convert to fraction form
    20,347.20/30,480.57 = 15,944.04/x
  3. Step 3: Cross multiply
    20,347.20x = 30,480.57 × 15,944.04
  4. Step 4: Simplify right side
    20,347.20x = 485,983,427.30
  5. Step 5: Solve for x
    x = 485,983,427.30/20,347.20
  6. Step 6: Final answer
    x = 23,884.54

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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.