Home / 20,675.87-31,016.37-5,885.94

Finding the Fourth Proportional to 20,675.87, 31,016.37 and 5,885.94

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Solution

The fourth proportional to 20,675.87, 31,016.37 and 5,885.94 is: 8,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.87 : 31,016.37 = 5,885.94 : x
  2. Step 2: Convert to fraction form
    20,675.87/31,016.37 = 5,885.94/x
  3. Step 3: Cross multiply
    20,675.87x = 31,016.37 × 5,885.94
  4. Step 4: Simplify right side
    20,675.87x = 182,560,630.55
  5. Step 5: Solve for x
    x = 182,560,630.55/20,675.87
  6. Step 6: Final answer
    x = 8,829.65

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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.