Home / 22,469.28-31,008.92-12,399.96

Finding the Fourth Proportional to 22,469.28, 31,008.92 and 12,399.96

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Solution

The fourth proportional to 22,469.28, 31,008.92 and 12,399.96 is: 17,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,469.28 : 31,008.92 = 12,399.96 : x
  2. Step 2: Convert to fraction form
    22,469.28/31,008.92 = 12,399.96/x
  3. Step 3: Cross multiply
    22,469.28x = 31,008.92 × 12,399.96
  4. Step 4: Simplify right side
    22,469.28x = 384,509,367.64
  5. Step 5: Solve for x
    x = 384,509,367.64/22,469.28
  6. Step 6: Final answer
    x = 17,112.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.