Home / 21,937.56-30,273.60-12,505.56

Finding the Fourth Proportional to 21,937.56, 30,273.60 and 12,505.56

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Solution

The fourth proportional to 21,937.56, 30,273.60 and 12,505.56 is: 17,257.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937.56 : 30,273.60 = 12,505.56 : x
  2. Step 2: Convert to fraction form
    21,937.56/30,273.60 = 12,505.56/x
  3. Step 3: Cross multiply
    21,937.56x = 30,273.60 × 12,505.56
  4. Step 4: Simplify right side
    21,937.56x = 378,588,321.22
  5. Step 5: Solve for x
    x = 378,588,321.22/21,937.56
  6. Step 6: Final answer
    x = 17,257.54

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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.