Home / 20,100.94-30,148.84-5,310.96

Finding the Fourth Proportional to 20,100.94, 30,148.84 and 5,310.96

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Solution

The fourth proportional to 20,100.94, 30,148.84 and 5,310.96 is: 7,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.94 : 30,148.84 = 5,310.96 : x
  2. Step 2: Convert to fraction form
    20,100.94/30,148.84 = 5,310.96/x
  3. Step 3: Cross multiply
    20,100.94x = 30,148.84 × 5,310.96
  4. Step 4: Simplify right side
    20,100.94x = 160,119,283.29
  5. Step 5: Solve for x
    x = 160,119,283.29/20,100.94
  6. Step 6: Final answer
    x = 7,965.76

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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.