Home / 18,769.08-28,171.62-13,824.60

Finding the Fourth Proportional to 18,769.08, 28,171.62 and 13,824.60

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Solution

The fourth proportional to 18,769.08, 28,171.62 and 13,824.60 is: 20,750.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.08 : 28,171.62 = 13,824.60 : x
  2. Step 2: Convert to fraction form
    18,769.08/28,171.62 = 13,824.60/x
  3. Step 3: Cross multiply
    18,769.08x = 28,171.62 × 13,824.60
  4. Step 4: Simplify right side
    18,769.08x = 389,461,377.85
  5. Step 5: Solve for x
    x = 389,461,377.85/18,769.08
  6. Step 6: Final answer
    x = 20,750.16

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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.