Home / 34,373.87-47,431.72-20,940.25

Finding the Fourth Proportional to 34,373.87, 47,431.72 and 20,940.25

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Solution

The fourth proportional to 34,373.87, 47,431.72 and 20,940.25 is: 28,894.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,373.87 : 47,431.72 = 20,940.25 : x
  2. Step 2: Convert to fraction form
    34,373.87/47,431.72 = 20,940.25/x
  3. Step 3: Cross multiply
    34,373.87x = 47,431.72 × 20,940.25
  4. Step 4: Simplify right side
    34,373.87x = 993,232,074.73
  5. Step 5: Solve for x
    x = 993,232,074.73/34,373.87
  6. Step 6: Final answer
    x = 28,894.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.