Home / 20,213.39-27,893.90-11,260.35

Finding the Fourth Proportional to 20,213.39, 27,893.90 and 11,260.35

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Solution

The fourth proportional to 20,213.39, 27,893.90 and 11,260.35 is: 15,538.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.39 : 27,893.90 = 11,260.35 : x
  2. Step 2: Convert to fraction form
    20,213.39/27,893.90 = 11,260.35/x
  3. Step 3: Cross multiply
    20,213.39x = 27,893.90 × 11,260.35
  4. Step 4: Simplify right side
    20,213.39x = 314,095,105.02
  5. Step 5: Solve for x
    x = 314,095,105.02/20,213.39
  6. Step 6: Final answer
    x = 15,538.96

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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.