Home / 31,147.50-46,735.83-13,622.34

Finding the Fourth Proportional to 31,147.50, 46,735.83 and 13,622.34

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Solution

The fourth proportional to 31,147.50, 46,735.83 and 13,622.34 is: 20,439.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,147.50 : 46,735.83 = 13,622.34 : x
  2. Step 2: Convert to fraction form
    31,147.50/46,735.83 = 13,622.34/x
  3. Step 3: Cross multiply
    31,147.50x = 46,735.83 × 13,622.34
  4. Step 4: Simplify right side
    31,147.50x = 636,651,366.44
  5. Step 5: Solve for x
    x = 636,651,366.44/31,147.50
  6. Step 6: Final answer
    x = 20,439.89

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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.