Home / 31,433.92-47,166.90-20,911.34

Finding the Fourth Proportional to 31,433.92, 47,166.90 and 20,911.34

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Solution

The fourth proportional to 31,433.92, 47,166.90 and 20,911.34 is: 31,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.92 : 47,166.90 = 20,911.34 : x
  2. Step 2: Convert to fraction form
    31,433.92/47,166.90 = 20,911.34/x
  3. Step 3: Cross multiply
    31,433.92x = 47,166.90 × 20,911.34
  4. Step 4: Simplify right side
    31,433.92x = 986,323,082.65
  5. Step 5: Solve for x
    x = 986,323,082.65/31,433.92
  6. Step 6: Final answer
    x = 31,377.67

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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.