Home / 20,013.49-27,619.67-11,516.90

Finding the Fourth Proportional to 20,013.49, 27,619.67 and 11,516.90

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Solution

The fourth proportional to 20,013.49, 27,619.67 and 11,516.90 is: 15,893.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.49 : 27,619.67 = 11,516.90 : x
  2. Step 2: Convert to fraction form
    20,013.49/27,619.67 = 11,516.90/x
  3. Step 3: Cross multiply
    20,013.49x = 27,619.67 × 11,516.90
  4. Step 4: Simplify right side
    20,013.49x = 318,092,977.42
  5. Step 5: Solve for x
    x = 318,092,977.42/20,013.49
  6. Step 6: Final answer
    x = 15,893.93

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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.