Home / 20,012.65-27,616.71-11,516.08

Finding the Fourth Proportional to 20,012.65, 27,616.71 and 11,516.08

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Solution

The fourth proportional to 20,012.65, 27,616.71 and 11,516.08 is: 15,891.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012.65 : 27,616.71 = 11,516.08 : x
  2. Step 2: Convert to fraction form
    20,012.65/27,616.71 = 11,516.08/x
  3. Step 3: Cross multiply
    20,012.65x = 27,616.71 × 11,516.08
  4. Step 4: Simplify right side
    20,012.65x = 318,036,241.70
  5. Step 5: Solve for x
    x = 318,036,241.70/20,012.65
  6. Step 6: Final answer
    x = 15,891.76

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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.