Home / 20,011.79-27,618.68-11,628.29

Finding the Fourth Proportional to 20,011.79, 27,618.68 and 11,628.29

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Solution

The fourth proportional to 20,011.79, 27,618.68 and 11,628.29 is: 16,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.79 : 27,618.68 = 11,628.29 : x
  2. Step 2: Convert to fraction form
    20,011.79/27,618.68 = 11,628.29/x
  3. Step 3: Cross multiply
    20,011.79x = 27,618.68 × 11,628.29
  4. Step 4: Simplify right side
    20,011.79x = 321,158,118.57
  5. Step 5: Solve for x
    x = 321,158,118.57/20,011.79
  6. Step 6: Final answer
    x = 16,048.44

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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.