Home / 29,660.40-40,931.34-16,231.65

Finding the Fourth Proportional to 29,660.40, 40,931.34 and 16,231.65

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Solution

The fourth proportional to 29,660.40, 40,931.34 and 16,231.65 is: 22,399.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,660.40 : 40,931.34 = 16,231.65 : x
  2. Step 2: Convert to fraction form
    29,660.40/40,931.34 = 16,231.65/x
  3. Step 3: Cross multiply
    29,660.40x = 40,931.34 × 16,231.65
  4. Step 4: Simplify right side
    29,660.40x = 664,383,184.91
  5. Step 5: Solve for x
    x = 664,383,184.91/29,660.40
  6. Step 6: Final answer
    x = 22,399.67

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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.