Home / 21,896.36-30,218.50-12,464.92

Finding the Fourth Proportional to 21,896.36, 30,218.50 and 12,464.92

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Solution

The fourth proportional to 21,896.36, 30,218.50 and 12,464.92 is: 17,202.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.36 : 30,218.50 = 12,464.92 : x
  2. Step 2: Convert to fraction form
    21,896.36/30,218.50 = 12,464.92/x
  3. Step 3: Cross multiply
    21,896.36x = 30,218.50 × 12,464.92
  4. Step 4: Simplify right side
    21,896.36x = 376,671,185.02
  5. Step 5: Solve for x
    x = 376,671,185.02/21,896.36
  6. Step 6: Final answer
    x = 17,202.46

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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.