Home / 25,629.35-38,450.23-12,478.73

Finding the Fourth Proportional to 25,629.35, 38,450.23 and 12,478.73

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Solution

The fourth proportional to 25,629.35, 38,450.23 and 12,478.73 is: 18,721.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,629.35 : 38,450.23 = 12,478.73 : x
  2. Step 2: Convert to fraction form
    25,629.35/38,450.23 = 12,478.73/x
  3. Step 3: Cross multiply
    25,629.35x = 38,450.23 × 12,478.73
  4. Step 4: Simplify right side
    25,629.35x = 479,809,815.16
  5. Step 5: Solve for x
    x = 479,809,815.16/25,629.35
  6. Step 6: Final answer
    x = 18,721.11

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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.