Home / 20,013.52-27,620.80-11,516.01

Finding the Fourth Proportional to 20,013.52, 27,620.80 and 11,516.01

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Solution

The fourth proportional to 20,013.52, 27,620.80 and 11,516.01 is: 15,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.52 : 27,620.80 = 11,516.01 : x
  2. Step 2: Convert to fraction form
    20,013.52/27,620.80 = 11,516.01/x
  3. Step 3: Cross multiply
    20,013.52x = 27,620.80 × 11,516.01
  4. Step 4: Simplify right side
    20,013.52x = 318,081,351.43
  5. Step 5: Solve for x
    x = 318,081,351.43/20,013.52
  6. Step 6: Final answer
    x = 15,893.32

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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.