Home / 19,939.91-27,516.70-10,988.24

Finding the Fourth Proportional to 19,939.91, 27,516.70 and 10,988.24

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Solution

The fourth proportional to 19,939.91, 27,516.70 and 10,988.24 is: 15,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.91 : 27,516.70 = 10,988.24 : x
  2. Step 2: Convert to fraction form
    19,939.91/27,516.70 = 10,988.24/x
  3. Step 3: Cross multiply
    19,939.91x = 27,516.70 × 10,988.24
  4. Step 4: Simplify right side
    19,939.91x = 302,360,144.93
  5. Step 5: Solve for x
    x = 302,360,144.93/19,939.91
  6. Step 6: Final answer
    x = 15,163.56

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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.