Home / 21,893.28-30,212.73-12,461.82

Finding the Fourth Proportional to 21,893.28, 30,212.73 and 12,461.82

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Solution

The fourth proportional to 21,893.28, 30,212.73 and 12,461.82 is: 17,197.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.28 : 30,212.73 = 12,461.82 : x
  2. Step 2: Convert to fraction form
    21,893.28/30,212.73 = 12,461.82/x
  3. Step 3: Cross multiply
    21,893.28x = 30,212.73 × 12,461.82
  4. Step 4: Simplify right side
    21,893.28x = 376,505,602.97
  5. Step 5: Solve for x
    x = 376,505,602.97/21,893.28
  6. Step 6: Final answer
    x = 17,197.31

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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.