Home / 20,245.68-27,940.01-13,534.02

Finding the Fourth Proportional to 20,245.68, 27,940.01 and 13,534.02

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Solution

The fourth proportional to 20,245.68, 27,940.01 and 13,534.02 is: 18,677.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.68 : 27,940.01 = 13,534.02 : x
  2. Step 2: Convert to fraction form
    20,245.68/27,940.01 = 13,534.02/x
  3. Step 3: Cross multiply
    20,245.68x = 27,940.01 × 13,534.02
  4. Step 4: Simplify right side
    20,245.68x = 378,140,586.47
  5. Step 5: Solve for x
    x = 378,140,586.47/20,245.68
  6. Step 6: Final answer
    x = 18,677.59

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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.