Home / 20,006.37-29,989.08-10,115.67

Finding the Fourth Proportional to 20,006.37, 29,989.08 and 10,115.67

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Solution

The fourth proportional to 20,006.37, 29,989.08 and 10,115.67 is: 15,163.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.37 : 29,989.08 = 10,115.67 : x
  2. Step 2: Convert to fraction form
    20,006.37/29,989.08 = 10,115.67/x
  3. Step 3: Cross multiply
    20,006.37x = 29,989.08 × 10,115.67
  4. Step 4: Simplify right side
    20,006.37x = 303,359,636.88
  5. Step 5: Solve for x
    x = 303,359,636.88/20,006.37
  6. Step 6: Final answer
    x = 15,163.15

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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.