Home / 20,137.11-30,199.50-9,601.58

Finding the Fourth Proportional to 20,137.11, 30,199.50 and 9,601.58

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Solution

The fourth proportional to 20,137.11, 30,199.50 and 9,601.58 is: 14,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.11 : 30,199.50 = 9,601.58 : x
  2. Step 2: Convert to fraction form
    20,137.11/30,199.50 = 9,601.58/x
  3. Step 3: Cross multiply
    20,137.11x = 30,199.50 × 9,601.58
  4. Step 4: Simplify right side
    20,137.11x = 289,962,915.21
  5. Step 5: Solve for x
    x = 289,962,915.21/20,137.11
  6. Step 6: Final answer
    x = 14,399.43

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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.