Home / 20,157.04-27,819.01-11,205.43

Finding the Fourth Proportional to 20,157.04, 27,819.01 and 11,205.43

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Solution

The fourth proportional to 20,157.04, 27,819.01 and 11,205.43 is: 15,464.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,157.04 : 27,819.01 = 11,205.43 : x
  2. Step 2: Convert to fraction form
    20,157.04/27,819.01 = 11,205.43/x
  3. Step 3: Cross multiply
    20,157.04x = 27,819.01 × 11,205.43
  4. Step 4: Simplify right side
    20,157.04x = 311,723,969.22
  5. Step 5: Solve for x
    x = 311,723,969.22/20,157.04
  6. Step 6: Final answer
    x = 15,464.77

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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.