Home / 18,621.60-25,706.88-14,629.92

Finding the Fourth Proportional to 18,621.60, 25,706.88 and 14,629.92

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Solution

The fourth proportional to 18,621.60, 25,706.88 and 14,629.92 is: 20,196.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.60 : 25,706.88 = 14,629.92 : x
  2. Step 2: Convert to fraction form
    18,621.60/25,706.88 = 14,629.92/x
  3. Step 3: Cross multiply
    18,621.60x = 25,706.88 × 14,629.92
  4. Step 4: Simplify right side
    18,621.60x = 376,089,597.85
  5. Step 5: Solve for x
    x = 376,089,597.85/18,621.60
  6. Step 6: Final answer
    x = 20,196.42

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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.