Home / 31,821.62-47,662.20-19,936.67

Finding the Fourth Proportional to 31,821.62, 47,662.20 and 19,936.67

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Solution

The fourth proportional to 31,821.62, 47,662.20 and 19,936.67 is: 29,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.62 : 47,662.20 = 19,936.67 : x
  2. Step 2: Convert to fraction form
    31,821.62/47,662.20 = 19,936.67/x
  3. Step 3: Cross multiply
    31,821.62x = 47,662.20 × 19,936.67
  4. Step 4: Simplify right side
    31,821.62x = 950,225,314.56
  5. Step 5: Solve for x
    x = 950,225,314.56/31,821.62
  6. Step 6: Final answer
    x = 29,861.00

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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.