Home / 21,814.24-30,104.60-12,383.68

Finding the Fourth Proportional to 21,814.24, 30,104.60 and 12,383.68

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Solution

The fourth proportional to 21,814.24, 30,104.60 and 12,383.68 is: 17,090.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,814.24 : 30,104.60 = 12,383.68 : x
  2. Step 2: Convert to fraction form
    21,814.24/30,104.60 = 12,383.68/x
  3. Step 3: Cross multiply
    21,814.24x = 30,104.60 × 12,383.68
  4. Step 4: Simplify right side
    21,814.24x = 372,805,732.93
  5. Step 5: Solve for x
    x = 372,805,732.93/21,814.24
  6. Step 6: Final answer
    x = 17,090.02

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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.