Home / 20,067.40-30,111.90-17,158.96

Finding the Fourth Proportional to 20,067.40, 30,111.90 and 17,158.96

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Solution

The fourth proportional to 20,067.40, 30,111.90 and 17,158.96 is: 25,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.40 : 30,111.90 = 17,158.96 : x
  2. Step 2: Convert to fraction form
    20,067.40/30,111.90 = 17,158.96/x
  3. Step 3: Cross multiply
    20,067.40x = 30,111.90 × 17,158.96
  4. Step 4: Simplify right side
    20,067.40x = 516,688,887.62
  5. Step 5: Solve for x
    x = 516,688,887.62/20,067.40
  6. Step 6: Final answer
    x = 25,747.67

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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.