Home / 19,940.10-27,516.96-10,988.43

Finding the Fourth Proportional to 19,940.10, 27,516.96 and 10,988.43

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Solution

The fourth proportional to 19,940.10, 27,516.96 and 10,988.43 is: 15,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.10 : 27,516.96 = 10,988.43 : x
  2. Step 2: Convert to fraction form
    19,940.10/27,516.96 = 10,988.43/x
  3. Step 3: Cross multiply
    19,940.10x = 27,516.96 × 10,988.43
  4. Step 4: Simplify right side
    19,940.10x = 302,368,188.77
  5. Step 5: Solve for x
    x = 302,368,188.77/19,940.10
  6. Step 6: Final answer
    x = 15,163.83

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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.