Home / 20,159.87-27,834.20-18,028.79

Finding the Fourth Proportional to 20,159.87, 27,834.20 and 18,028.79

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Solution

The fourth proportional to 20,159.87, 27,834.20 and 18,028.79 is: 24,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.87 : 27,834.20 = 18,028.79 : x
  2. Step 2: Convert to fraction form
    20,159.87/27,834.20 = 18,028.79/x
  3. Step 3: Cross multiply
    20,159.87x = 27,834.20 × 18,028.79
  4. Step 4: Simplify right side
    20,159.87x = 501,816,946.62
  5. Step 5: Solve for x
    x = 501,816,946.62/20,159.87
  6. Step 6: Final answer
    x = 24,891.87

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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.