Home / 20,093.08-27,725.08-13,388.72

Finding the Fourth Proportional to 20,093.08, 27,725.08 and 13,388.72

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Solution

The fourth proportional to 20,093.08, 27,725.08 and 13,388.72 is: 18,474.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.08 : 27,725.08 = 13,388.72 : x
  2. Step 2: Convert to fraction form
    20,093.08/27,725.08 = 13,388.72/x
  3. Step 3: Cross multiply
    20,093.08x = 27,725.08 × 13,388.72
  4. Step 4: Simplify right side
    20,093.08x = 371,203,333.10
  5. Step 5: Solve for x
    x = 371,203,333.10/20,093.08
  6. Step 6: Final answer
    x = 18,474.19

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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.