Home / 20,711.55-31,082.82-8,063.30

Finding the Fourth Proportional to 20,711.55, 31,082.82 and 8,063.30

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Solution

The fourth proportional to 20,711.55, 31,082.82 and 8,063.30 is: 12,100.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,711.55 : 31,082.82 = 8,063.30 : x
  2. Step 2: Convert to fraction form
    20,711.55/31,082.82 = 8,063.30/x
  3. Step 3: Cross multiply
    20,711.55x = 31,082.82 × 8,063.30
  4. Step 4: Simplify right side
    20,711.55x = 250,630,102.51
  5. Step 5: Solve for x
    x = 250,630,102.51/20,711.55
  6. Step 6: Final answer
    x = 12,100.98

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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.