Home / 20,251.50-30,379.44-5,460.36

Finding the Fourth Proportional to 20,251.50, 30,379.44 and 5,460.36

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Solution

The fourth proportional to 20,251.50, 30,379.44 and 5,460.36 is: 8,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.50 : 30,379.44 = 5,460.36 : x
  2. Step 2: Convert to fraction form
    20,251.50/30,379.44 = 5,460.36/x
  3. Step 3: Cross multiply
    20,251.50x = 30,379.44 × 5,460.36
  4. Step 4: Simplify right side
    20,251.50x = 165,882,679.00
  5. Step 5: Solve for x
    x = 165,882,679.00/20,251.50
  6. Step 6: Final answer
    x = 8,191.13

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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.