Home / 31,450.40-47,136.72-15,859.52

Finding the Fourth Proportional to 31,450.40, 47,136.72 and 15,859.52

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Solution

The fourth proportional to 31,450.40, 47,136.72 and 15,859.52 is: 23,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,450.40 : 47,136.72 = 15,859.52 : x
  2. Step 2: Convert to fraction form
    31,450.40/47,136.72 = 15,859.52/x
  3. Step 3: Cross multiply
    31,450.40x = 47,136.72 × 15,859.52
  4. Step 4: Simplify right side
    31,450.40x = 747,565,753.57
  5. Step 5: Solve for x
    x = 747,565,753.57/31,450.40
  6. Step 6: Final answer
    x = 23,769.67

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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.