Home / 18,824.40-28,231.20-5,673.60

Finding the Fourth Proportional to 18,824.40, 28,231.20 and 5,673.60

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Solution

The fourth proportional to 18,824.40, 28,231.20 and 5,673.60 is: 8,508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.40 : 28,231.20 = 5,673.60 : x
  2. Step 2: Convert to fraction form
    18,824.40/28,231.20 = 5,673.60/x
  3. Step 3: Cross multiply
    18,824.40x = 28,231.20 × 5,673.60
  4. Step 4: Simplify right side
    18,824.40x = 160,172,536.32
  5. Step 5: Solve for x
    x = 160,172,536.32/18,824.40
  6. Step 6: Final answer
    x = 8,508.77

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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.