Home / 18,573.05-27,858.55-13,580.54

Finding the Fourth Proportional to 18,573.05, 27,858.55 and 13,580.54

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Solution

The fourth proportional to 18,573.05, 27,858.55 and 13,580.54 is: 20,370.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.05 : 27,858.55 = 13,580.54 : x
  2. Step 2: Convert to fraction form
    18,573.05/27,858.55 = 13,580.54/x
  3. Step 3: Cross multiply
    18,573.05x = 27,858.55 × 13,580.54
  4. Step 4: Simplify right side
    18,573.05x = 378,334,152.62
  5. Step 5: Solve for x
    x = 378,334,152.62/18,573.05
  6. Step 6: Final answer
    x = 20,370.06

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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.